Monarch migration update: winds from south, hot temps stall butterflies on Llano River

Hundreds of Monarch butterflies paused in the Texas Hill Country this weekend as winds from the south and temperatures in the 90s prevented the migrating insects from continuing their journey south.

Monarchs pecan trees wind

Small clusters of six-12 Monarch butterflies battled the wind and 90-degree temperatures along the Llano River this weekend. Photo by Monika Maeckle

Most late season nectar plants had passed their peak, with much of the Frostweed, Verbesina virginica, and Goldenrod, Solidago altissima, two late season nectar favorites, starting to go to seed. Cowpen daisies, Verbesina enceliodes, situated in shady spots produced lush, new blooms, offering the stymied flyers a fuel stop.

Coupon Daisy pecan tree Monarch butterfly

Patches of Cowpen Daisy offered fuel stops for migrating Monarch butterflies in the shade of Llano River pecan trees. Photo by Monika Maeckle

On the river banks, Swamp milkweed, Asclepius incarnata, host plant for Monarchs and Queens, showed fresh foliage for late season caterpillars, providing plenty of host plant for those Monarchs who chose to ditch the migration and reproduce locally.

David Berman

David Berman, PhD candidate at Oklahoma State University, is studying late generation Monarch butterflies and parasitoids. Photo by Monika Maeckle

David Berman, PhD candidate in the integrative biology program at Oklahoma State University, made the second of three scheduled visits to the ranch this weekend.

TAchinid fly larvae

Eeew.Monarch caterpillar killed by the parasitoid Tachinid fly larvae. Those red “pills” are the pupae of the fly. Photo by Monika Maeckle

Berman is gathering data for a study funded by the Texas State Comptroller’s Office and other organizations, looking at the impacts of parasitoids and fifth generation Monarch butterflies on the migrating Monarch population.

In the back of his white Durango, Berman carried an entire ice chest filled with dead Monarch and Queen caterpillars collected in Texas and infected with Tachinid flies. The gross fly has a science fiction-like life cycle: it deposits its eggs on Monarchs and other caterpillars, which then hatch inside the caterpillar and eat it from the inside out.

Second instar Monarch caterpillar

Second instar Monarch caterpillar on the Llano River, October 16, 2016. Photo by Monika Maeckle

Third install

Third instar Monarch caterpillar, Llano River, October 16, 2016. Photo by Monika Maeckle

Fifth instalr

Ready to bust his stripes. Fifth instar Monarch caterpillar, October 16, 2016 on Llano River. Photo by Monika Maeckle

Here along the Llano, known as the “last wild river” in Texas, dozens of Monarch butterfly caterpillars in all stages of development —eggs, caterpillars and adult butterflies in migrating mode—supplied plenty of data for his study.

“I’d have to agree with Dr. Chip Taylor that the migration will be late and long this year,” said Berman.

Monika on Llano tagging

Frustrating tagging outing on the Llano River. Photo by Victoria Echeverri

A small tagging team attempted to net the smaller-than-usual clusters of six-10 butterflies we usually encounter during peak Monarch season.

Victoria tagging

Victoria Echeverri of San Antonio takes her best shot at a cluster of Monarchs waiting out the wind on the Llano River. Photo by Monika Maeckle

High temperatures in the low nineties and winds out of the south gusting at 29 mph thwarted the butterflies directional flight south. They also seemed more skittish than usual, clinging to pecan limbs close to the limestone escarpment that provides a scenic backdrop to our river bottom.

Every time they left a pecan limb or cedar branch to continue their travels, a rush of wind would push them back. The wind made netting the creatures more challenging than usual,  as the slightest pivot of the Monarch’s wings or body would allow them to take a dramatic turn and avert our swoops.  A full day on the river only netted 58 tagged, compared to three times that many last year.

Monarch pecan

Pecan nuts made a convenient rest stop on the Llano River for migrating Monarch butterflies. Photo by Monika Maeckle

As the sun set on a mid October day that called for shorts and t-shirts instead of the usual jeans and long sleeves, we all wondered: is this the new normal? Rather than dramatic dense clusters of hundreds or thousands of butterflies roosting a few nights as in peak seasons past, maybe we’ll be seeing smaller groups over many weeks.

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Can’t get outside? Here’s how to track the Monarch butterfly migration from your desk

Monarch butterflies are on the move in what is likely to be a late migration.

Here in San Antonio, we’re entering peak migration time, as deemed by the calendar put together by Monarch Watch, the citizen science initiative that tracks the migrating insects. The calendar uses tagging data collected over decades to predict when the masses of Monarch butterflies are likely to move across specific latitudes on their way to Mexico.

The best way to enjoy the fun is to get outside as much as possible to see what’s going on with the famous flyers. But that’s not always possible. Work, school and/or other obligations always seem to get in the way.

Tagged Monarch butterfly

Won’t be long and Monarch butterflies will be passing throughout the Texas Funnel.  Check out the online tools that will help you track the migration.  Photo by Monika Maeckle

Not to worry. By tapping the resources below, you’ll be able to stay on top of the Monarch butterfly migration right from your desk or mobile device.  Check out the cool tools available at the intersection of technology and (citizen) science listed below.

Journey North

First stop should be the Journey North website.  A free internet-based program that explores the interrelated aspects of seasonal change, Journey North tracks wildlife migrations including hummingbirds, whales and bald eagles.   This time of year, the Monarch migration gets top billing.  Journey North founder Elizabeth Howard told us that hundreds of thousands of people per month visit the site during Monarch migration season.

And with good reason.  Journey North offers constantly updated maps showing where adult Monarchs, eggs, caterpillars, and roosts have been spotted.  Photos and reports from citizen scientists, butterfly enthusiasts, professional photographers and academics populate the site, along with training and resources for teachers and others.

In last week’s map, below, overnight roosts were recently observed in North Texas.

Journey North 2016 map

Journey North tracks the migration weekly using data submitted by volunteer citizen scientists. Click on the map above to see latest migration status. –Map via Journey North

Journey North also publishes a weekly migration update on Thursdays, often written by founder Elizabeth Howard, like this one from October 6:  “A sudden and dramatic sweep into northern Texas occurred this week as the migration map shows. A river of wind carried monarchs by the thousands across Missouri and Oklahoma where a roost of 4,000 butterflies was reported — the largest of the season. On Friday, September 30, a dozen Texans reported in as a wave of butterflies arrived.


butterflyfest_300x600Using Twitter as a search engine is another great Monarch butterfly tracking tool. It provides real-time updates of Monarch butterfly sightings and offers a timely feed on

Monarch butterfly news, from many of my favorite sources–including Journey North and Monarch Watch.

Granted, not everyone uses Twitter, but an estimated 313+ million people and myriad organizations tap the free, real-time application as a search engine and personal or professional broadcast outlet.

That means you can visit and punch in “monarch butterflies” or “monarch migration” or “tagged monarch butterfly” and dozens of hours-old “tweets”–brief 140-character updates—will be returned, telling you where Monarchs are flying RIGHT NOW.

For example, this search of “monarch butterflies” on Twitter today, retrieved a feed that included these beautiful photos.


Twitter indexes the last 3200 tweets of any individual, so if you’re looking for historical archives, better check Google and other search engines. You can try searching Google News, but this won’t return the real-time reports Twitter delivers.  Check it out.

Wind Map

For those of us who live in the Texas funnel, the wind plays an especially significant role in planning for Monarch tagging outings. During Monarch season, I plot each weekend for maximum Monarch activity.

Before leaving town, I check the Wind Map, a fantastic tool that shows which way the winds are blowing.  If winds are coming out of the North, that means Monarchs will be riding the wave and we could have a big mass when they drop from the sky at sunset and roost for the night.

If winds are coming from the South, Monarchs won’t be moving much. That could mean they’re stranded in place, which could also make for good tagging since they will likely hang out and nectar on late blooming flowers.


Check the wind map and see which way the winds are blowing. This tells us alot about how Monarchs can move south toward Mexico–or not. Screen grab via Wind Map

Either way, the map lets us know what’s coming.  Plus, it’s simply a dreamy tool, with it’s  visual articulation of nature’s breath expressed in real-time.

As the site descriptor says: “An invisible, ancient source of energy surrounds us—energy that powered the first explorations of the world, and that may be a key to the future. This map shows you the delicate tracery of wind flowing over the US.”

Wind map creators

Wind map creators Martin Wattenberg and Fernanda Viégas. Courtesy photo

The wind map is an art project of Fernanda Viégas and Martin Wattenberg who lead Google’s “Big Picture” visualization research group in Cambridge, Massachusetts. The talented team are committed to a “rigorous understanding of visualization” informed by their Ph.Ds–Viégas’ graduate degree from the MIT Media Lab; Wattenberg’s in mathematics, from U.C. Berkeley.

LOVE this project.

Monarch Watch and Journey North Facebook Pages

If you’re reading this and you’re on Facebook, then you likely have already “LIKED” the Monarch Watch and Journey North Facebook pages.  If not, go ahead, do it now, and join the party.  (And while you’re at it, why not LIKE the Texas Butterfly Ranch Facebook page?)

With more than 38,000 fans, Monarch Watch’s page serves as a delightful online plaza where the Monarch Watch team from the University of Kansas engages with the rest of us to share information, photos, and wax passionate about Monarch butterflies and their migration.   Citizen scientists like Rachel Shoemaker form Bixby Oklahoma, recreational observers, and professional and amateur biologists and entomologists join the conversation.


Screengrab via Facebook.

The Journey North Facebook page, with more than 24,000 fans is equally engaging.  Journey North posts regular updates and visitors like Peggyanne Wink in Pennsylvania share sightings and observations (see below).


Screengrab via Facebook.

Numerous other Monarch butterfly pages have cropped up on Facebook in recent months, including this one that tracks Migrant Monarch Tag Reports. The page is a closed group, meaning you have to request access. It describes itself as a page “created for those people who find tagged monarch migrants. Take a picture if you can of the tag number or post the tag number so people can track their tagged monarchs. Please only post about tagged monarchs you’ve witnessed or found.”

Monarch Watch Website

Journey North devotes itself to wildlife migrations besides Monarch butterflies, but the Monarch Watch website brags Monarch butterflies, all the time.

Monarch Watch website offers Monarch info 24/7/365

Based at the University of Kansas at Lawrence, Monarch Watch founded the citizen scientist tagging program embraced by thousands of us who tag Monarchs each fall.  Its comprehensive website offers information on how to tag a Monarch, raising milkweed, rearing Monarch caterpillars, and a database of all the Monarch tags recovered in Mexico, so those of us who tag can find out if any of our butterflies made it home.

tagged recovered Monarch

Thanks to Monarch Watch and the miracles of social media, I was able to determine that this ragged fellow, netted at the Texas Butterfly Ranch on October 1, 2016 on the Llano River near London, Texas, was tagged in southern Oklahoma. Photo by Monika Maeckle

Thanks to Monarch Watch, I was able to determine that the butterfly I netted on October 1 this year had been tagged in Tishomingo, Oklahoma nine days earlier.  Pretty cool story–read it here.

The site posts predictions for when the peak migration will occur at your latitude based on Monarch Watch scientists’ well-researched opinions.  The Monarch Watch blog is also worth a look and you can join thousands of others to get on the mailing list.

D-Plex List

If the above won’t sate your migration curiosity, then consider signing up for the D-PLEX list,  an email exchange that includes about 800 scientists, conservationists, enthusiasts, and others, including some very interesting characters.

Named after the Monarch butterfly’s Latin designation, Danaus plexipus, the D-PLEX is an old fashioned email listserv started by Monarch Watch founder Dr. Chip Taylor and invites the public.  Sign up to receive D-PLEX emails on the Monarch Watch webpage.

Careful, though.  The D-PLEX can overtake your email inbox.   Conversations can escalate, generating dozens of emails a day, many of which you may not find useful. Sometimes exchanges devolve into rude online arguments. I’ve set up all D-PLEX emails to forward to a special email box that I check periodically, so as not to be overwhelmed.

Don’t forget to check in with us here at the Texas Butterfly Ranch, too.  We’ll do our best to keep you posted.

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Butterfly bonanza: Monarch tagged in Oklahoma netted on Llano River in Texas

A male Monarch butterfly, tag number WMX658, paused Saturday morning October 1 around 11 AM on a fresh Frostweed bloom along the Llano River. Netted and retrieved, the faded Monarch was photographed, then released to set sail for his flight to Mexico.

Justin Roach WMX658

Justin Roach’s WMX658 male Monarch, 9/22 in Tishomingo, Oklahoma. Photo by Justin Roach

tagged recovered Monarch

About 350 miles and nine days later, WMX658  was netted on the Llano River near London, Texas. Photo by Monika Maeckle

Thanks to the miracles of social media and the tight-knit Monarch butterfly community, it soon became apparent that Mr. WMX658 was tagged at the Tishomingo National Wildlife Refuge in southern Oklahoma on September 22 about 10:30 AM by Justin Roach, wildlife biologist for the US Fish and Wildlife Service refuge there.

Roach said by phone that WMX658 was one of 15 butterflies tagged that day. About 350 miles later, I netted the butterfly in Kimble County near London, Texas.

James Roach Tishomongo

Justin Roach, wildlife biologist at the Tishomingo National Wildlife Refuge in southern Oklahoma tagging Monarchs in early September. Photo by Joanne Ryan

That means WMX658 traveled about 44 miles per day, an impressive clip, to reach our nectar patch along the Llano. Hopefully, he’ll have fueled up enough in Texas to carry him the remaining 920 miles to the overwintering roosts in Mexico.

“It seems the migration is more consistent this year than I’ve ever seen. Every day there’s been a few,” said Roach, who usually tags between 100-200 butterflies annually. The day WMX658 was tagged, butterflies were nectaring on Smartweed, a member of the Polygonum family.  Roach said a school outing was planned for that Thursday, but somehow the kids couldn’t make it so he just tagged with staff.

WMX658 flew about 350 miles since September 22, arriving along the Llano River on October 1. Graphic via Google

WMX658 left  Tishomingo,Oklahoma on September 22, arriving nine days later 350 miles south on the Llano River. Graphic via Google

Having tagged about 1,000 Monarchs since 1997, Roach has had two recoveries in Mexico, where the butterflies are typically found on the forest floor after having made the full trip to Michoacán. This was the first time someone found a Monarch he had tagged and reported it live.

It was a first for me as well. In 11 years of tagging more than 3,000 Monarch butterflies with 29 recoveries, I had never netted a Monarch tagged elsewhere.

This poor male was too ragged to tag. Photo by Monika Maeckle

This poor male was too ragged to tag. Photo by Monika Maeckle

Our Oklahoma Monarch was just one of about two dozen spotted and 11 tagged on the Llano this weekend–all males. Just a week prior, on September 26, more than five inches of rain fell in the Texas Hill Country and parts of South Texas. The storm system left the landscape thoroughly drenched and primed for sustaining late season blooms for peak migration visitors later this month.

Many Swamp milkweed stands, Asclepius incarnata, that exhibited packs of aphids, milkweed beetles and bugs just two weeks ago, were now washed clean, losing lower milkweed leaves to “drowning” by water levels that rose 4 – 6 feet. Seedpods have replaced the pink flowers while other late season bloomers drew literally thousands of butterflies.

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                                       --all photos by Monika Maeckle

Frostweed, Verbesina virginica, was a favorite draw for Queens, Spangled, Gulf and other fritillaries, Giant, Pipevine and Eastern Swallowtails, skippers, snouts, sulphurs–everyone swarmed to the nectar fest that the recent weather pattern has made possible. And the wilted, yellowed, washed out milkweed leaves didn’t stop Monarchs and Queens from laying their eggs on remaining healthy foliage. At least one more hatch will occur before peak migration arrives the last two weeks of October.

monarch egg drowned milkweed

River rises six feet and drowns your host plant? No problem. Monarchs and Queens find the good foliage to deposit their eggs. Photo by Monika Maeckle

The snout-nosed butterfly invasion that hit us two weeks ago seems to bode well for butterflies in general. While the snouts were not quite as obvious this weekend at the ranch, they made a repeat–even exaggerated appearance in San Antonio midweek.

snouts pioneer flower mill

The snouts returned to invade downtown San Antonio again last week. The weather has been perfect for butterflies. Photo by Monika Maeckle

The small, orange-and-black brushfooted butterflies made headlines in early September because of their staggering presence. Just last Thursday, on September 29, literally millions of the small orange and black flyers filled the skies of downtown San Antonio, clogging car grills, spattering windshields, and confusing many who thought they were Monarchs.

“I looked outside and it was like a butterfly highway,” said Rebecca Guererro, a stylist at Mint Salon in downtown San Antonio on Thursday.

Monarchs have begun showing up in steady trickles in these parts just in the last week. The storied migrants were pushed south by a recent cold front and the dry-wet weather has set the stage for a bounty of nectar.

Queens on Frostweed, Llano River

Queens on Frostweed, Llano River Photo by Monika Maeckle

A kayak tour of the Llano revealed no caterpillars this trip, although plenty of Queen and Monarch eggs were present on the mud-coated Swamp milkweeds that bowed to the floodwaters which rose about six feet.

Dr. Chip Taylor of Monarch Watch issued a migration update on September 26 predicting a late migration this year.

“A while back I pointed out the probability that the migration would be late and long this year. That is likely to be the case,” said Taylor, pointing to hot weather as the cause. “Last week was a scorcher through much of the midwest with temperatures in the 90s and high-80s over a broad area. The migration advances slowly, if at all, under these conditions. The ideal temperatures for the migrants are in the 70s and 60s,” he said.

The Journey North website reported streams of Monarchs heading south through the central and eastern flyways. The site attributed the movement to a cold front that “dropped down from the north and finally ended the unseasonably hot weather — with associated south winds — that have been holding the butterflies back,” wrote Elizabeth Howard, founder of Journey North, in last week’s Thursday migration newsletter. Howard cited peak flights along the ridges of the Appalachian Mountains over the weekend as “the first strong pulse in the Eastern Flyway.”

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Climate change expert Dr. Katherine Hayhoe at TribuneFest: “Hopelessness is hopeless”

Dr. Katherine Hayhoe, one of the foremost experts in the world on climate change, appeared at the Texas Tribune Festival this weekend in a one-on-one interview with Neena Satija,  the news organization’s environmental and investigative reporter.


Climate change expert Dr. Katherine Hayhoe will join us at our Climate Change and the Monarch Butterfly Migration Symposium in San Antonio October 21 -Photo by Artie LImmer, Texas Tech University

Since Dr. Hayhoe will be joining us at our Monarch Butterfly and Pollinator Festival October 20 -22 as a speaker at our climate change symposium, I thought I’d sit in on the session to get a preview of what we might hear from her next month. Tickets available here.

Hayhoe did not disappoint. But first, a bit of background.

Born in Ontario, Canada, she “grew up with Monarch butterflies,” she told me after her appearance. She was raised as an evangelical Christian and climate skeptic.

butterflyfest_300x600Now, as an atmospheric scientist, Hayhoe serves as an associate professor and director of the Climate Science Center at Texas Tech University with a B.Sc. in Physics from the University of Toronto and an M.S. and Ph.D. in Atmospheric Science from the University of Illinois. She devotes herself to developing and applying climate projections to understand what climate change means for people and the natural environment. As a lead author for the Second and Third U.S. National Climate Assessments, she has conducted climate impact studies for a broad cross-section of organizations, cities and regions, from Boston to Texas to California.

“I am also the founder and CEO of ATMOS Research, where we bridge the gap between scientists and stakeholders to provide relevant, state-of-the-art information on how climate change will affect our lives,” Hayhoe states on her website.

This bridge building becomes most interesting when Hayhoe taps into her identity as an evangelical Christian married to a pastor–not the typical profile of a climate change activist. She and her husband Andrew Farley, a professor of applied linguistics and best-selling author, wrote A Climate for Change: Global Warming Facts for Faith-Based Decisions, a book that untangles the complex science of climate change while tackling long-held misconceptions.

This defying of the stereotype gives Hayhoe a unique ability to talk about climate change in a way people can hear and understand.

Satija Hayhoe

Neena Satija interviews Dr. Katherine Hayhoe at the Texas Tribune Festival. Photo by Monika Maeckle

Referring to the “earth’s fever,” on Saturday at Calhoun Hall on the University of Texas at Austin campus, she pointed out how the values that drive people to do things big and small to combat client change are the same values upon which every major religion in the world are founded–taking responsibility, caring about the future our children will face, and caring for the poor, for example.

“Hopelessness as a policy is hopeless,” Hayhoe said. “Hope is what keeps us going as humans.”

She added that the poor and the vulnerable are the human populations most effected by climate change. Native Americans in Alaska and Louisiana have been displaced and are the first climate change refugees “because their land is sinking,” into the rising oceans, she said.

climate change hayhoe book

Hayhoe’s book, coauhored with her husband Dr. Andrew Farley, unravels misconceptions about climate change. Courtesy photo

But Hayhoe’s primary message was one of hope. She cited the progress and actions cities are taking across the country to fight climate change–planting more trees, reducing pavement, concrete and other impervious cover, creating green roofs to help reduce temperatures in urban heat islands.

She praised British Colombia’s carbon fee dividend program–whereby companies and individuals charge a fee for greenhouse gas emissions, which are then refunded to taxpayers as a dividend. “China’s 2015 coal emissions dropped for the first time. They have more wind and solar than anyone,” she said.

She encouraged those advocating to combat climate change to “leave the science behind” and talk about something that touches people’s hearts.

“To talk to people about climate change, don’t start with the science, talk about something that is personal to them,” said Hayhoe. “We must be able to connect where our heart is, not just where our head is.”

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McAllen, Texas becomes second NWF Monarch Butterfly Champion City

There’s a new Monarch Butterfly Champion City in the Lone Star State: McAllen.


Tattered Monarch on Purple Mistflower at the National Butterfly Center in Mission, Texas. Photo courtesy of National Butterfly Center

For the past 10 months, San Antonio ranked as the only National Wildlife Federation  (NWF) Monarch Butterfly Champion City.  San Antonio Mayor Taylor signed the NWF’s Mayor’s Monarch Pledge last December, committing to all 24 action items recommended in the national campaign to encourage mayors and local governments to increase Monarch butterfly and pollinator habitat.

But that unique status is now behind us. Last week, McAllen Mayor Jim Darling, citing San Antonio Mayor Ivy Taylor as “an inspiration,” became the second mayor in the country to step up to the plate and make pollinators a hometown priority.

McAllen Mayor Jim Darling has made pollinators a priority. Courtesy photo

McAllen Mayor Jim Darling has made pollinators a priority. Courtesy photo

Darling made the announcement at the September McAllen City Commission Meeting. Darling also declared Sept. 12 “Mayor’s Monarch Pledge Day in the City of McAllen.”

“Mayor Darling has made a major commitment to help save this iconic, declining species in a city that sits right in the middle of the Monarch butterflies’ migratory flyway,” said Patrick Fitzgerald, National Wildlife Federation senior director of community wildlife, in response to the news.

The Lower Rio Grande Valley’s McAllen-Edinburg-Mission triangle has long been a place with much wildlife diversity due to its location at the intersection of myriad ecosystems that host more than 300 species of butterflies and 520 species of birds.


McAllen Mayor Jim Darling announces McAllen’s status as a Monarch Butterfly Champion City. Briana Deleon, Quinta Mazatlan Volunteer of the Year, dons her wings to commemorate the occasion. Photo courtesy of the McAllen Mayor’s Office.

Bird- and butterfly-viewing destinations such as Quinta Mazatlan in McAllen, the National Butterfly Center, the annual Texas Butterfly Festival in Mission, and the Santa Ana National Wildlife Refuge in Hidalgo County draw nature lovers from all over. The City of McAllen attributes an annual $460 million in eco-tourism to its “natural beauty and sunny and temperate year-round climate,” according to a press release.

San Antonio Mayor Ivy Taylor welcomed McAllen to the elite club of NWF Monarch Champion Cites.

“Like us, McAllen obviously understands the significance of helping protect and promote our State Insect,” Taylor said. “I’d like to issue a challenge for all other mayors in Texas to sign the pledge and help make us the first Monarch Champion State in the U.S.”


In an email exchange, Darling gave special credit to Colleen Hook, director of Quinta Mazatlan, a McAllen wildlife sanctuary that promotes knowledge about birds, plants, and environmental stewardship in South Texas, for “leading the effort for the Mayor.” Hook became aware of the challenge through press coverage of San Antonio’s pledge, the Mayor’s office stated via email.

“We have a big responsibility in South Texas to enhance the migratory ‘Texas Funnel’ used by butterflies, birds and many other creatures of the land,” said Hook.

Hook refers to the remarkable  “Texas funnel,”the  passage through which Monarch  butterflies migrate coming and going  each spring and fall over multiple generations, moving from Mexico to Canada and back before settling into their roosts for the winter in the mountainous forests west of Mexico City.

Monarch migrate through Texas coming and going through the Texas Funnel. Graphic by Nicolas Rivard

Monarchs migrate from Mexico to Canada and back through the ‘Texas Funnel.’ Graphic by Nicolas Rivard

“We welcome anybody else trying to help Monarchs,” said North American Butterfly Association President Jeffrey Glassberg, who also is founder of the National Butterfly Center (NBC) in Mission. The NBC was recently featured in a Texas Monthly article titled “Mission’s Quest to Become the Butterfly Capital of the World.”

Status as a Monarch Butterfly Champion City doesn’t come easy. Municipalities must agree to adopt all 24 specific actions suggested by the NWF to support the declining Monarch butterfly migration and other pollinator habitat.

Participation in the pledge requires at a minimum for Mayors to execute three of the 24 items; to be in the “leadership circle” they must commit to eight; to become a Monarch Champion, they must do all 24. Actions range from citizen science projects and installing a pollinator garden at City Hall or another highly visible public space, to hosting a butterfly festival and changing landscape ordinances and city mowing schedules.


Since the Mayor’s Monarch Pledge was launched in September of last year, 190 entities across North America have committed to create habitat and encourage their citizens to do the same.

In recent years, the Monarch butterfly migration has declined dramatically– by 80% from the 21-year average across North America. Scientists attribute the decline to habitat loss, the increase in genetically modified crops in their primary breeding zone in the Midwest, increased pesticide use, illegal logging in Mexico, and climate change.

In August of 2014, several organizations submitted a petition to list the Monarch butterfly as a “threatened” species under the Endangered Species Act. The petition is currently under review. In May of 2015, President Obama announced a National Pollinator Strategy that addressed not only the decline of Monarch butterflies, but the demise of bees. The 58-page document also committed the federal government to restore seven million acres of pollinator habitat over the next five years, with a special focus on the IH-35 corridor.


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Invasion of Snout-nosed butterflies returns to Central and South Texas

While we’re waiting for Monarch butterflies to move through the Texas Funnel, another orange-and-black butterfly has made its presence known here en masse.


Snout-nosed butterfly. With wings closed, it’s disguised as a leaf. Photo by Drake White

The American Snout butterflyLibytheana carinenta, is currently moving around the IH-35 pollinator corridor, clogging windshields and car grills along the way.

The long-nosed butterfly with mottled black, orange and white coloration, migrates randomly around Central and South Texas following late summer rains, said Texas Entomologist Mike Quinn.

“It’s not a migration in the usual terms,” Quinn said. “They’re ’emigrating’ out of where they overpopulated and exhausted the food source, looking for new mates.”

Snout by Drake White

Drake White of the Nectar Bar holds an American Snout-nosed Butterfly in San Antonio this week. Photo by Drake White

That food source is the hackberry tree, often considered a nuisance tree by landscapers and gardeners, but which is actually a fantastic wildlife plant. Its leaves provide food for snout caterpillars and its berries offer important winter sustenance for birds. Big snout invasions can completely defoliate a hackberry tree, but the tree will recover.


Hackberry, often considered a trash tree, provides food for snout caterpillars and other wildlife. Photo courtesy of Texas Agrilife.

The 2016 weather cycle set the stage for this year’s snout invasion, the likes of which we haven’t seen since 2012. The snout deluge should last about another two weeks.

A dry July followed by a wet August reduced the predators and favored the snouts, who can postpone reproductive activities until moisture returns. Late summer rains following dry spells also cause hackberry trees to sprout tender new growth – perfect fuel for baby snout caterpillars which are leaf green, and about an inch long when mature.

“Late summer rains are a hallmark of the snout explosion followed by mass movements in multiple directions,” Quinn said.

According to most recent reports, the snouts seem concentrated in the Edwards Plateau area.

Richard Kostecke, associate director of conservation at The Nature Conservancy of Texas in Austin, reported counting 376 snouts during a 30-minute run yesterday. Driving home from the Hill Country on Monday, I witnessed thousands of snouts smacking windshields on IH-10 around the Medina River near Comfort.

“I have tons of them at my house right now, but I also have a hackberry tree in my yard,” said Drake White, who lives on the northeast side and operates the Nectar Bar, a Facebook page devoted to helping people learn how to responsibly raise butterflies.


Twitter was aflutter with tweets about Snout-nosed butterflies. Screenshot via Tweetdeck

Social media was also aflutter with snout sightings.

“Those are snout nose (sic) butterflies & they are getting on my nerves! I’m not washing my car until I kill the last one!” tweeted Addie @addiesabatino, yesterday.

“Snout-nosed butterflies: I hope you ALL get to where you are going soon . . . I’ll help you pack AND buy your gas! 🙄,” Teresa Jackson Doty posted on FAcebook.

The mottled grey insects disguise themselves as dead leaves when their wings are closed. With wings open, they flaunt their orange, black and white accents and are sometimes confused with Monarchs or Painted Lady butterflies.

Snouts, so called because of their tubular, elephant trunk-like “noses,” lay eggs on the leaves of hackberry trees, the drought-tolerant native considered a trash shrub by some. The adult butterflies nectar on various flowering plants and live about two weeks.

In the annals of American Snout butterfly migrations, 1921 ranks as a most remarkable year. After a world record downpour in Central Texas on September 9-10, 1921, when 36.4 inches of rain fell in an 18-hour period, a Snout butterfly breakout resulted a few weeks later.

“An estimated 25 million per minute southeasterly-bound snout butterflies passed over a 250 mile front from San Marcos to the Rio Grande River,” according to Mike Quinn’s Texas Entomology, a trusted and entertaining source for Texas insect news and info. Scientists noted at the time that the butterflies’ flight “lasted 18 days and may have involved more that 6 billion butterflies.”

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Llano River: Late season nectar plants await Monarch butterfly migration

Conditions were ideal along the Llano River last weekend with sprays of late season nectar plants poised for the arrival of Monarch butterflies in what is predicted to be a down year for their migration.

male monarch swamp

Late season nectar plants like Swamp milkweed and Goldenrod await migrating Monarchs. The early male visited us on the Llano River last weekend. Photo by Monika Maeckle

Sprays of Goldenrod, Frostweed, Swamp milkweed and other late bloomers graced the river banks and surrounding watershed while migration forecasters called for a setback.

On March 8, a freak spring ice storm brought ice, snow and dramatic winds to the Oyamel forest where the Monarchs roost each winter. Just as they were heading north to lay the first generation of eggs in Texas, the storm destroyed 135 acres of forest and killed an estimated 6.2 million butterflies – about 7.4% of the 84 million roosting at that particular preserve, Mexico’s Attorney General for Environmental Protection Alejandro Del Mazo recently told the Associated Press.

Monarch cat on swamp

Hangin’ out on the Llano. Monarch butterfly caterpillars and eggs were abundant last weekend on the Llano River. Photo by Monika Maeckle

The squall set the 2016 season off to a bad start and will likely result in a setback to the threefold population increase the Monarchs enjoyed last year, scientists suggest.

Mother Nature’s deadly blow has hit especially hard here in San Antonio, the nation’s first Monarch Butterfly Champion City, so named by the National Wildlife Federation (NWF).

In the past year, here and elsewhere, the migrating orange-and-black insects have never enjoyed more fame and fortune, as government and educational institutions have increased pollinator habitat, earmarked millions for research on milkweed – the insects’ host plant – and raised public awareness of Monarchs and other pollinators to unprecedented heights.

Mayor Ivy Taylor shows off her Monarch butterfly earrings in City Council chambers. Photo by Monika Maeckle.

Mayor Ivy Taylor shows off her Monarch butterfly earrings in City Council chambers. Photo by Monika Maeckle.

“I know how much we all look forward to seeing the majestic Monarchs every year, and it saddens me to think that their population has been impacted so dramatically by the ice storm in Mexico,” said Mayor Ivy Taylor, who signed the NWF’s Mayor’s Monarch Pledge on Dec. 9 last year. “However, we will keep working to provide them with a safe haven here in San Antonio.”

Chip Taylor, Ph.D., founder of Monarch Watch, predicted in his annual summer Monarch Population Status blog post that 2016 would likely be comparable to 2014. The last three years have been closely monitored by Monarch aficionados: In 2013, the population dropped to 33.5 million butterflies, the lowest since records have been kept; in 2014, it increased to 56.5 million; and last year 200.5 million butterflies were recorded.

In 2015, President Obama released a National Pollinator Strategy that set out to increase the Monarch population to 225 million – the historic 20-year average.

The iconic insects make one of the most remarkable annual migrations on the planet, traveling up to 2,800 miles from Mexico through the United States to Canada and back over multiple generations.

Monarch migration champion map

Monarch butterflies move through San Antonio coming and going in the spring and fall on the annual multigeneration migration. Graphic by Nicolas Rivard.

Their journey starts in March, where they spend the winter in the Oyamel fir forests. After a cue from the sun, they head to Texas where they lay their first generation of eggs on milkweed plants – the only plant they use to breed. Those eggs hatch into caterpillars who then grow into butterflies that continue the cycle over the summer, with fourth or fifth generation butterflies returning to Mexico in the fall to overwinter, despite never having been to the specific roosting site where their ancestors launched the journey. The following spring, those butterflies begin the cycle anew.

Glum predictions aside, conditions could not be more perfect in Texas to welcome the migrating butterflies this fall.

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Each year around Labor Day we see the first trickle of Monarchs, or what’s called the ‘pre-migration migration’ – a vanguard of reproductive Monarch butterflies that lay eggs which will hatch and become the final generation of migrating adults.

Last weekend, half a dozen adult Monarch butterflies showed up right on cue along the Llano River in the Texas Hill Country. Even more interesting, dozens of caterpillars and eggs were spotted on the Swamp milkweed, Asclepias incarnata, a Monarch butterfly host plant, and suggested that Monarchs had been passing through in the preceding weeks. Three late stage caterpillars literally hung out on the Llano, preparing to bust their stripes and go chrysalis.

Goldenrod, Purple mistflower, White boneset, Snow-on-the-prairie, Frostweed–all late season nectar plants that the butterflies use as fuel stops, exhibited their showy sprays along the Llano River and elsewhere in the Texas Hill Country over Labor Day weekend. Bees, wasps, moths, beetles, and aphids were seen in large numbers, following a series of rain events that followed a scorching South Texas summer.

A male Monarch butterfly nectars on Swamp milkweed along the Llano River in the Texas Hill Country as part of the "pre-migration migration." Photo by Monika Maeckle

A male Monarch butterfly nectars on Swamp milkweed along the Llano River in the Texas Hill Country as part of the “pre-migration migration.” Photo by Monika Maeckle.

A quick survey of local Monarch Watchers had few sightings to report.

“Nothing to report in Comfort yet,” said Monarch Watch Education Outreach Specialist Cathy Downs. Monarch Larvae Monitoring Project volunteer Mary Kennedy said the same thing. Master Naturalist Drake White, who manages the Phil Hardberger Park butterfly garden and runs the Nectar Bar, a Facebook page devoted to helping people raise butterflies, reported two Monarch sightings. Local botanist and landscaper Charles Bartlett of Greenhaven Industries reported seeing one Monarch locally.

Sightings throughout the spring and summer have been slim, with the freak sleet storm taking most of the blame for the Monarchs’ absence.  Read more here.

To determine peak migration time for your area, consult the Monarch Watch website or Journey North.  In San Antonio, at 29 degrees latitude, we’re looking at seeing the butterflies sometime in late October.


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Monarch butterflies heading our way, but not as many as we hoped

Monarch butterflies are heading our way, but their numbers are likely to be down this year.  Climate change–combined with habitat loss and other threats–dealt a heavy blow to the population, which enjoyed a celebrated threefold increase last fall.

Will Monarchs be listed as "threatened" under the Endnagered SPecies Act? We'll know in 3 years. Monarch on Cowpen daisy.Photo by Scott Ball

Monarch butterflies are heading our way, but not as many as we had hoped.  Monarch on Cowpen daisy. Photo by Scott Ball

The weekend of March 8-9 proved to be a deadly setback for Monarchs. Just as they were heading to Texas from their winter roosts in Michoacán to create the first generation of 2016, a freak ice storm hit the forest where they overwinter. The frigid wind and weather killed an estimated 6.2 million butterflies–about 7.4 percent of the 84 million roosting there, Mexico’s attorney general for environmental protection Alejandro Del Mazo told the Associated Press this week.

Even worse, the storm destroyed 133 acres of the Oyamel fir forest which serves as the Monarchs’ winter home as well as habitat to hundreds of species of birds, mammals, vascular plants and mushrooms. That lost canopy will take years, perhaps decades, to recover. And its service as a protective, insulating blanket for the Monarchs and other wildlife may be gone forever.

Frozen monarch butterflies

Millions of Monarch butterflies froze to death in the March storm in Michoacán. Photo via Monarca via  Facebook

The iconic insects make one of the most remarkable annual migrations on the planet,  traveling up to 2,800 miles from Mexico through the United States to Canada and back over multiple generations.

Their journey starts in March where they spend the winter in the Oyamel fir forests. After a cue from the sun, they head to Texas where they lay their first generation of  eggs on milkweed plants—the only plant they use to breed. Those eggs hatch into caterpillars who grow into butterflies that continue the cycle over the summer, with fourth or fifth generation butterflies returning to Mexico in the fall to overwinter–having never been to the specific roosting site where their ancestors launched the journey.  The following spring, those butterflies begin the cycle anew.


The freak ice and wind storm  destroyed 135 acres of their roosting forest. Photo by Monika Maeckle

According to a brief released by the World Wildlife Fund on August 23, the protected forest lost to the March sleet storm was four times that destroyed by illegal logging last year. Here’s the breakdown: of the 179 acres of forest lost in the last year in the core zone of the Monarch Butterfly Biosphere Reserve, 29.5 acres were destroyed by illegal logging, 133 acres by wind-fallen trees during the storm, and 16 acres by drought.

Experts agree that the ice storm got the season off to a bad start. Those of us who follow Monarchs noticed far fewer this spring, as the depleted population made its way north. We hoped they would recover in the summer breeding grounds.

Monarch migration map

The Monarch migration moves the iconic butterflies through the entire Eastern United States over the course of the summer. Graphic by Nicolas Rivard

“Normally I collect eggs in the spring and I was down about 65% percent over seasons’ past,” said Cathy Downs, Education Outreach specialist for Monarch Watch, the University of Kansas at Lawrence-based organization that runs the citizen science tagging program that tracks the migrating butterflies.  Downs operates out of Comfort, Texas, just outside San Antonio.  “I would definitely say this was a really, really down spring.”

Further up the migratory path, social media posts from the summer breeding grounds bemoaned the general lack of Monarch butterflies.

Two tagged Monarchs

Looking forward to seeing more of these guys. Photo by Monika Maeckle

“I only saw one Monarch a week ago up at Illinois Beach State Park, while we were walking the dunes, clearing them of white sweet clover,” Kathleen Garness of Forest Park, Illinois wrote to the DPLEX list June 20, an email list that reaches about 800 Monarch butterfly enthusiasts, scientists and citizen scientists.

Tony Kowall of Park Ridge, Illinois, agreed. “We really miss seeing and raising the Monarchs…. It is quite distressing to think how badly the population must of have hit with the storm earlier this year. Last year we raised 200 Monarchs.”

And this from Fred Kaluza in Detroit on the same email string: “Countryside looks like late July. Lots of uneaten milkweed. No Monarchs seen.”

Teresa Bailey‎, who lives north of Kansas City, Missouri, posted June 14 on Facebook:  “I still haven’t seen any Monarch butterflies yet. My common milkweed has grown six feet tall. Still no butterflies. I’m concerned. They should have been here a while ago.”


Dr. Chip Taylor says we are likely to see the 2014 season again, second worst in history. Graph via Monarch Watch

Everyone’s worst suspicions were confirmed when  Dr. Chip Taylor, founder of Monarch Watch, issued his annual summer Monarch population status bulletin.

“All the data to this point in time suggest that this year will be a repeat of 2014 with a significant decline in the migration and the overwintering numbers,” wrote Taylor in July, citing below normal first-of-season sightings and the ice storm.  “We will never have a comprehensive assessment of the impact of this weather event but it does appear to have been significant,” wrote Taylor, noting that some scientists were suggesting 50% of Monarchs had perished in the storm.

Despite that sad turnaround from a tripling of the population last fall, the migration is underway.  “Sightings of southbound Monarchs, intense nectaring, and the first overnight roosts are being reported,” read the headline in this week’s bulletin by Journey North, which tracks Monarch butterflies and other migrating creatures.

Journey North map

Sightings of adult Monarch butterflies as of August 25, 2016, according to Journey North.  Map via Journey North

With all the press Monarch butterflies have been getting this year, we have never been better prepared to welcome them as they move through our landscapes and gardens. In the past 18 months, millions of dollars in research has been earmarked for mIlkweed and nectar plant restoration programs, Monarch and pollinator education efforts, and general awareness of the important role Monarchs and other pollinators play in our ecosystem food web. Awareness across the Americas has never been higher.

That said, climate change will have the last word on how many Monarch butterflies will make the trip this year.


Want to be sure to see Monarchs this fall? Join us October 22 during peak Monarch migration week in San Antoino at the Monarch Butterfly and Pollinator Festival at the Pearl. Events are FREE.

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When aphids suck the life from your milkweed, here’s how to safely get rid of them

The dreaded oleander aphids have arrived here and are trying to wreak havoc in my gardens. At a friend’s house today, I noticed that all of her milkweed is infested beyond hope….Are there any new ideas on how to deal with them? Thanks. –Jan LeVesque, Minneapolis

Jan LeVesque is not alone in her exasperation at the hands–rather, mouth parts–of plant sucking aphids.  Anyone who raises milkweed in an effort to attract Monarchs is familiar with the soft-bodied, squishy orange insects that seemingly take over anything in the Asclepias family.

Oleander aphids on Tropical milkweed

If you raise milkweed and Monarchs, you’re well acquainted with oleander aphids. Here they are on Tropical milkweed. Note the sticky, slick looking substance on the leaves. That’s honeydew. Photo by Monika Maeckle

Jan, like many before and after her, posted the above query on the Monarch Watch DPLEX list, an old school listserv that goes to hundreds of citizen and professional scientists and butterfly fans who follow the Monarch migration. And as usual, the community had plenty of ideas.

But before we explore how to kill them, let’s take a look at the interesting life cycle of these ubiquitous, annoying insects, known as oleander aphids, milkweed aphids, or by their Latin name, Aphis nerii.

First off, they are parthenogenic, which means they clone themselves and don’t require  mates to reproduce. In addition, the clones they produce are always female.  Yes, that’s right–all girls. “No boys allowed.”


All female aphid colonies undermine our milkweeds. Photo via University of Florida

According to the University of Florida’s Department of Entomology and Nematology “Featured Creatures” website, “The adult aphids are all female and males do not occur in the wild.”  Instead, the aphid moms deposit their all-female nymph broods on the stalks of our milkweed plants.  That generation morphs four more times until they grow up to become aphid moms who repeat the process.

Even more interesting, under normal conditions, adult female aphids do not sport wings, but get this: if conditions are crowded, or the plant is old and unappetizing (which happens as the summer progresses in our part of the world), the girls grow wings so they can fly away to greener pastures–or in this case, fresher milkweed. Aphids live 25 days and produce about 80 nymphs each.

This brilliantly efficient method of reproduction, says Featured Creatures, is one of the reasons “large colonies of oleander aphids…build quickly on infested plants.”

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Small populations of aphids are pretty harmless to the plants, but when you get a large colony, the milkweed suffers. The aphids insert their piercing mouthparts into the milkweed, literally sucking the life out of it as they enjoy the sweet liquid that courses through the plant. The high concentration of sugar in that liquid means the aphids have to eat a lot of it to get the protein they need.

That results in a profuse amount of excrement, called honeydew. It is prolific and forms a thin, sticky layer on the leaves of your milkweed, choking the absorption of essential nutrients.  It can also cause sooty mold, an ugly dark fungi that can cover your milkweed.

We have a fair amount of milkweed near the house and it’s been aphid free so far – except for one incarnata shoot on which a 3 inch long colony had formed with probably more than 500 aphids of all sizes. Not having mixed up any fancy aphid remedy and not having insecticidal soap, I looked under the sink for the handy spray bottle of 409. It wasn’t there – so, I grabbed the Windex instead. Last evening a quick inspection showed that all the aphids were blackened and dead. I checked again this morning and spotted one aphid. The plant seems unaffected by the treatment.  –-Dr. Chip Taylor, Founder of Monarch Watch

Once you have well-established infestation of aphids, the plant just goes downhill. The aphids themselves are also highly appetizing to Ladybugs, wasps and syrphid flies–all insects that eat aphids and Monarch or Queen eggs with equal abandon.

When I get a serious aphid infestation, I typically use a high pressure spray of water to blow the bugs off the plant. That simultaneously washes the honeydew off the milkweed, which will deter the arrival of ants and also clean the leaves so they can absorb sun, air, water and nutrients to fuel their growth.

My other method is to simply squish the aphids between my thumb and fingers and wipe them off the plant. Your thumb and fingers will turn bright gold, but will wash off.

Oleander aphids

A Ladybug’s favorite treat: aphids. Photo by Monika Maeckle

Some gardeners like to use alcohol or other additives with the water spray, but I prefer to keep that stuff off my plants.

As Dr. Karen Oberhauser of the University of Minnesota and founder of the Monarch Larvae Monitoring Project wrote to the DPLEX list in July of 2015, “Detergent treatments will kill any live insects on aphid-infested plants, including Monarch eggs, Monarch larvae, and aphid predators like syrphid fly larvae, ladybug larvae, and lacewing larvae.”

Alas, even Dr. Oberhauser, who has decades of experience with aphids, admits “There is really no good way to kill aphids without killing everything else, except by trying to lower the population by carefully killing them by hand.”

If Monarch cats are not present, I spray with insecticidal soap and then rinse later with water hose. If that is ineffective, I move up to Neem oil and rinse it off also later. One and/or the other are very effective…. It is easy to go from 1 to 1,000s of aphids in a very short period of time.

— David Laderoute, Coordinator,  Missourians for Monarchs

Another option is biological control. Lady beetles or Ladybugs feed primarily on aphids. Somehow they seem to magically find their way to our milkweed gardens to feast on the yellow critters. Ladybugs can be purchased in bags at some garden centers and released to do their jobs.  But remember–they also eat butterfly eggs.

Hover flies and wasps also eat aphids. Wasps have a bizarre practice of laying their eggs on the aphids, then eating them from the inside out, leaving a brown shelled carcass in their wake. We often find these hollow corpses on our milkweed plants.

Boo-hoo! Dead Monarch caterpillars fall victim to pesticide laced milkweed

Pesticides will kill aphids, but they often remain in the plant for months and will also kill Monarch caterpillars. Photo by Sharon Sander

One good thing about aphids: if you see them on a plant in a nursery, you know the milkweed is clean, and has NOT been sprayed with systemic pesticides. We all want perfect looking plants, but the occasional aphid is a good sign that your plants are pure. See this post for more on that topic.

Need more ideas for getting rid of aphids?  Check out this useful post from The Monarch Butterfly Garden.  If you have new tips not covered here, please leave a comment below.  Good luck!

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That ain’t no Monarch: meet these OTHER caterpillars that feed on milkweed

More than any other, the caterpillars of Monarch butterflies are most closely associated with eating milkweed–anything in the Asclepias family. With their distinctive black, white and gold pin-striped suits and expressive dark tentacles reaching out into the universe, that’s no surprise.

Monarch caterpillar on milkweed

Monarch butterfly caterpillars are the most famous milkweed feeders. Photo by Monika Maeckle

They’re endearing, ubiquitous, easy to identify and we have a special relationship with them.

But there’s a at least three other caterpillars that eat milkweed for breakfast, lunch and dinner.

Last week I noticed this fellow noshing on a pot of Swamp milkweed, Asclepias incarnata. 

Garden striped caterpillar

That ain’t no Monarch. It’s a Striped garden caterpillar. Photo by Monika Maeckle

My first thought: “That ain’t no Monarch.”

Correct. It’s the Striped garden caterpillar, Trichordestra legitimata, which feasts not only on milkweed but other common garden greens–clover, goldenrod, yarrow, grasses and others. The Striped garden caterpillar turns into the rather nondescript Striped garden caterpillar moth, a grey, smallish creature with little black diamonds on his back. Check out these photos on

Here’s a better picture of the caterpillar, via Molly Jacobson.

Garden striped moth caterpillar

Molly Jacobson found this Striped  garden caterpillar crossing a path and resting on a dead leaf. Photo by Molly Jacobson

Dr. David L. Wagner, author of the useful Caterpillars of Eastern North America, describes the milkweed feeder on page 415 of his seminal guidebook as a “handsome brown and yellow striped caterpillar.” He recommends looking for them in grass seed heads but adds that he often finds them on the flowers of Goldenrod in the fall.

Perhaps even more handsome is the fluffy Milkweed Tussock Moth caterpillar, Eucaetes Egle. Like so many other insects that use milkweed as their primary food, this creature expresses the cardiac glycosides found in the latex of the milkweed plants with orange and black coloring.

This photo of at late instar Euchaetes Egle was taken at 12:17pm on October 20, 2007 in Glen Rose, TX. The caterpillar was spotted walking across a hiking trail in a wooded area.

This Tussock moth caterpillar was spotted in Glen Rose, Texas in 2007 walking across a hiking trail in a wooded area.  Photo by J. Scott Kelley  via Wikipedia.

The adult form of this moth, below, also displays orange and black on its body, as it peeks through the wings to alert predators–WARNING: I don’t taste good!

Dr. Wagner’s description of the interesting larvae: “densely hairy caterpillar with numerous black, orange (or yellow) and white tufts and lashes.”  Yes, “lashes.”

That’s what these hairy protrusions look like–almost colorful bristles on a soft toothbrush extending from the caterpillars body. According to Wagner, the species occurs in Texas and the Southwest, but I have never seen one.  Would love to, though.


Milkweed Tussock Moth, photo by Patrick Coin via Wikipedia.

A third milkweed fan, Cycnia inopinatus, also makes appearances now and then. Kip Kiphart, a trainer for Monarch Larvae Monitoring Project (MLMP) and volunteer at Cibolo Nature Center in Boerne, Texas, reports that the Cycnia pictured below was found in 2003 by Myrna Langford while checking milkweed on Laurel’s Ranch near Comfort, Texas.  The Cyncia is considered a first for the area.

UnkCaterpillar (1)

Cyncia inopinatus caterpillar. Another milkweed feeder. Photo by Kip Kiphart

Kiphart says Langford brought the caterpillar to a meeting, asking for help in identifying it. “Nobody had any idea what it was. I took it home, took photos, sent them to a number of people and nobody knew what it was,” said Kiphart. Eventually the Cyncia was identified.

It turns into the Unexpected Cyncia moth and feeds exclusively on milkweed. You can see the same orange-and-black expression of other milkweed consumers in the belly of the beast, below. The University of Minnesota, which oversees the MLMP, is seeking citizen science observations and documentation of the moth, which is considered rare and of conservation concern.

DSCN0003 (1)


Cyncia adult moth. Photos by Kip Kiphart

Judging from conversations with folks who work and play a lot with milkweed raising caterpillars and butterflies, these other milkweed eaters are not all that common.

Have you seen any of these other milkweed feeders?  Let us know.

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