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Andrew Warren

@andybugguy.bsky.social
2.4K followers 246 following 2K posts

IN AWE OF NATURE! Entomologist, systematist, biogeographer, photographer; museums & collections. Based in Colorado! he/his. My science: lepscience.com/my-publications

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Andrew Warren @andybugguy.bsky.social · 29/09/2026
Musems that have been developed over dozens or hundreds of years cannot just be shuttered, when other options exist, by a free and fair society. We have a very serious problem here in the USA- and it radiates worldwide.
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Andrew Warren @andybugguy.bsky.social · 29/09/2026
It’s so sad to see USA university after university relinquish their autonomy after bowing to threats from our massively corrupt “leaders🤢”. My beloved @cornelluniversity.bsky.social caved like a bunch of cowards- their museums will surely disappear soon, too (Shame on you Cornell!!!).
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Andrew Warren @andybugguy.bsky.social · 29/09/2026
The traditional model of “institutional funding” for natural history museums and collections is broken in the USA. Universities feel free to ignore previous agreements and just close museums and sell or shutter collections! This is unacceptable. We need to develop a new privately-funded model!
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Andrew Warren @andybugguy.bsky.social · 29/09/2026
This is so fucking infuriating! Another museum shutting down 😭
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Andrew Warren @andybugguy.bsky.social · 25/09/2026
Parnassius butterflies are simply extraordinary! I've been so lucky to have them in my life for as long as I can remember... It makes watching their habitats being destroyed for more and more homes so very, very painful...
Two mating butterflies perched on a succulent plant, against a rocky background. The plant, Sedum lanceolatum is the caterpillar's foodplant. The female (above) will loose her yellowish coloration in the hours after mating as her wings dry and harden. These are from a low-elevation site for Parnassius smintheus sayii east of Castle Rock, Douglas County, Colorado, USA, which is sadly being converted into 525 more homes- the future residents of 'Bella Mesa North' will live here instead. As I painfully watch the habitat become degraded and destroyed, my memories of these magnificent butterflies and their landscape become more and more cherished.....
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Sarah McAnulty, Ph.D. @sarahmackattack.bsky.social · 24/09/2026
If you want a full rundown of the Academy of Natural sciences situation, this video does a really good job of covering it. youtu.be/nxyfBfCrbDw?...
youtu.be
The Plan To Destroy Americas Oldest Natural History Museum
YouTube video by Miniminuteman
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Andrew Warren @andybugguy.bsky.social · 24/09/2026
Can you believe these illustrations are 154 years old? They're from W. H. Edwards' 'The Butterflies of North America', Part 1, published between 1868-1872. These remain some of the finest illustrations showing variation in Colorado's Parnassius butterflies- which I'll be posting more about soon!
These extraordinarily detailed illustrations published by W. H. Edwards in 1972 depict variation in Colorado Parnassius butterflies that were collected by Theodore Mead in 1871. The paler individual on the upper right is a male, all others are females. Females from lower elevations (on the left: east slope above, west slope below) are larger and paler than females from the highest elevations (lower right). The high-elevation individuals have essentially always been considered an elevational "form" of the larger ones at elevations below, but after studying these for a very long time now, it appears clear to me that they are separate species. I'll be rambling a lot more about "Parnassius smintheus" (on the left) and "Parnassius hermodur" (on the right) in future posts...
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Bea Leiderman @bealeiderman.bsky.social · 19/09/2026
The largest of the bunch, and the only one I don’t have a still image of. The common Morpho, M. helenor. Nothing common about it, though. Each wing is as big as my hand.
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Marburymoths @marburybirds.bsky.social · 11/09/2026
Oh my. This Clouded Yellow has just let me photograph it on my phone. Just look at the colour of its eye 😁 So glad this beautiful butterflies have turned up on patch this year.
Close up of a Clouded Yellow butterfly with its striking green eyeClose up of a Clouded Yellow butterfly with its striking green eyes Clouded Yellow butterfly in the dewy grass
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Sarah McAnulty, Ph.D. @sarahmackattack.bsky.social · 05/09/2026
Please repost! Drexel announced that it will close the Academy of Natural Sciences public museum- the oldest nat history museum in the US. There are 2 petitions to support the academy. Please sign both & come to our rally Tues. actionnetwork.org/petitions/pe... www.change.org/p/the-academ...
A poster featuring the T-Rex at the cognitive natural sciences, which says save the Academy natural sciences, museum rally in front of the academy 1900 Ben Franklin Parkway, Tuesday, September 8 10 AM. The T-Rex is saying tell Drexel keep the museum open. There’s an RSVP QR code and then the logos of Philly Science Action Skype scientist In Philly on the bottom.
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Andrew Warren @andybugguy.bsky.social · 31/08/2026
This is just a vicious little jumping spider- ready to leap if I get any closer!!! Western Pygmy Blue Brephidium exilis Pueblo County, Colorado, USA
One of North America’s tiniest butterflies, Western Pygmy Blues have black and metallic greenish scales that resemble the eyes of a jumping spider… The whitish markings below vaguely resemble spider legs…. This one hadn’t become active for the day yet and was quietly perched near the larval foodplants- the time when such a strong resemblance to a spider is likely most important.
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Andrew Warren @andybugguy.bsky.social · 20/08/2026
Had such an insightful day studying two adjacent side canyons off Glenwood Canyon, near Glenwood Springs, Colorado, USA. The first two pics show a forested canyon that barely got spared from the Grizzly Creek Fire of 2020. The second two pics are of Grizzly Creek Canyon, 6 years after the fire.
Forested canyon with creek near Glenwood Springs, Colorado, USA. Walking path at lower right.Rocky, forested canyon near Glenwood Springs, Colorado, USA. This canyon barely got spared from the Grizzly Creek fire of 2020 just to the east. Grizzly Creek Canyon 6 years after it burned. Some trees were spared, but most vegetation here is growing back anew. The butterfly fauna here is not as rich now as it was before the fire, but a lot of species are doing great here now. Canyon wall of Grizzly Creek Canyon, a side canyon off Glenwood Canyon, near Glenwood Springs, Colorado, USA. The burnt trees are still standing from the Grizzly Creek Fire in 2020. The low, green, mat-like shrubs on the steep slope are Gambel Oaks coming back up from the roots.
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Sarah Finn @romanceofbooks.bsky.social · 03/08/2026
My first article was published in the Archives of Natural History! It is about The Naturalist’s Library, a popular forty-volume book series published in Edinburgh from 1833-1843 by William Home Lizars and Sir William Jardine. @sochistnathist.bsky.social
Cover of the recent issue of Archives of Natural History. Phlox flowers in the background. Two original watercolours by James Hope Stewart (1789 –1856) that were the basis for steel engravings for The Naturalist’s Library. Top: ‘Glossy Ibis’ (Plegadis falcinellus). Bottom: ‘Kingfisher’ (Alcedo atthis).

From the Library and Archives, Natural History Museum, London

@nhmlibraryarchives.bsky.socialhttps://doi.org/10.3366/anh.2026.1031
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Andrew Warren @andybugguy.bsky.social · 02/08/2026
The best way to start the day- with a lovely two-tailed swallowtail…!
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Ceci mp @cecimp.bsky.social · 25/07/2026
"A New Challenge to Species Delimitation: Remarkable Genomic and Ecological Diversity in the Butterfly Melitaea diamina" has been published! Read it here: onlinelibrary.wiley.com/doi/full/10.... #PublishedArticle @WileyInResearch
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Florida Museum of Natural History @floridamuseum.bsky.social · 28/07/2026
Museum Collections 🔬 Secret Morphology Lepidopterists can often look at butterfly and moth wing patterns to help identify them, but not always. They sometimes have to rely on – genitalia dissection. Read about this with our McGuire Center: www.floridamuseum.ufl.edu/mcguire/news...
a brightly back-lit image of what looks like a five petalled flower with pink hair on its petals next to a small glassy oblong tube with short golden hairs lining one end. There is a small inset showing a tiny glass dish near labels which indicates this could be magnified biological items from insects of some kind
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Nature’s Edge @edge-nature.bsky.social · 27/07/2026
Peck’s Skipper finally showed up in the garden. Their caterpillars can develop in nonnative bluegrass, and other native grasses.
A small swept winged butterfly with yellow surrounded with brown cells. They look fast!
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Andrew Warren @andybugguy.bsky.social · 27/07/2026
So, know it or not, today is your lucky day! You are one of the first humans to see the fully-grown caterpillar of the undescribed Hypsocompe species! They have been happy feeding on a lot of plants, but at the moment seem to prefer the organic romaine from Whole Foods… 🐛😁
Bristly blackish caterpillar with orangish highlights, in the palm of my hand. This is an undescribed species… I’ve been rearing this and its ~200 siblings, with good success so far. I hope they beef up and make cocoons soon, otherwise I might have to figure out how to overwinter them…
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nunesnaturalist.bsky.social @nunesnaturalist.bsky.social · 01/07/2026
The hills are alive with the sound of vibrating keratin segments! Rattlesnakes, like this defensive Prairie Rattlesnake (Crotalus viridis), employ aposematic signaling to warn nearby threats, like coyotes, bobcats, and passing hikers, of their deadly presence. Be vigilant out there!
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Andrew Warren @andybugguy.bsky.social · 26/07/2026
It was a long hot day, but in a majestical place that is poorly surveyed for butterflies. AND we found our target: a very poorly known metalmark (Apodemia sp.)!
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Andrew Warren @andybugguy.bsky.social · 24/07/2026
This anglewing butterfly is very rarely seen because it basically never visits flowers or damp ground- it is a sap feeder. Endemic to Colorado’s Front Range: Polygonia oreas nigrozephyrus Douglas County, Colorado
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Andrew Warren @andybugguy.bsky.social · 24/07/2026
This anglewing butterfly is very rarely seen because it basically never visits flowers or damp ground- it is a sap feeder. Endemic to Colorado’s Front Range: Polygonia oreas nigrozephyrus Douglas County, Colorado
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Andrew Warren @andybugguy.bsky.social · 16/07/2026
Found a new favorite place! Actually found it last year, but a bit too late in the season to see it at its summertime best. It’s in the greater Sangre de Cristo range of southern Colorado… It was a butterfly paradise!
Mountain meadow looking up to 14,000’+ peaks. Lush flower-filled mountain meadow. Wet part of a flower-filled meadow, surrounded by giant spruce and aspen trees. Wet meadow full of yellow composite flowers, surrounded by towering aspen and spruce trees. The flowers were infested with butterflies!
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Nature’s Edge @edge-nature.bsky.social · 06/07/2026
The amazing Chryxus Arctic, a biennial butterfly which caterpillars take two years to mature, eating sedges and grasses. Thus the adults only fly on even years.
A marbled butterfly, cryptically colored with tones of brown, black, and white.
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Andrew Warren @andybugguy.bsky.social · 25/06/2026
Don’t bother going up into the Wet Mountains. Ugly terrain, no good views at all. Just stay away, ok thanks!
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Andrew Warren @andybugguy.bsky.social · 24/06/2026
West Spanish Peak in southern Colorado is one of the most breathtaking features in the southern Rocky Mountains. Planned for a week around the weather forecast, for the perfect day up there, and got it yesterday!
View of West Spanish Peak- blue sky forever and a mountain of rocksView of West Spanish Peak from a nearby ridgeline. Talus slopes on the flanks of West Spanish Peak. Blue sky above…Slopes leading down from West Spanish Peak, leading to the Cucharas River below…
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Cri 🕊🐝🐜📝🎭⚽😷 @crawlieswithcri.bsky.social · 06/06/2026
🚨HOLY *&^$!🚨 @andybugguy.bsky.social LOOK WHO I FOUND! Abbot Cr. Rd. today! I got ONE photo! Shocked it's one GOOD photo! I had no idea who they were, just, "I have NEVER seen that skipper before!" Everyone who isn't Andy - this is an Arctic Skipper (Carterocephalus mandan) 1/2 #inverts
macro photo of a skipper on the head of a grass species. their top upper wing is black with orange spots. underside of top wing is orange with black spots. bottom wing is orange with cream spots.
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Andrew Warren @andybugguy.bsky.social · 19/05/2026
OH HERE WE GO SHE LAID A PILE OF EGGS!!!!
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Andrew Warren @andybugguy.bsky.social · 16/05/2026
This absolute stunner is an undescribed species of Hypsocompe, known from just a few specimens. There is only one other record from Colorado (Baca Co.), thus, this is the northernmost record for the species (see alt text). Found under the sheet this morning by @nunesnaturalist.bsky.social !
The pattern of black markings on the white background of this moth give it a remarkably cryptic and unique appearance. This undescribed species is known as "Hypsocompe extrema of authors" on the Moth Photographers Group website, where it is acknowledged as an undescribed species known from Arizona and Texas. There are known specimens from New Mexico as well, and in 2022, Christian and I found the first record in Colorado- in Baca County. This one, from Huerfano County, pushes the known range of this rarely encountered moth even further north...  Huge thanks to Chris Pague and Michael Figgs for arranging access to the site!
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Andrew Warren @andybugguy.bsky.social · 16/05/2026
This absolute stunner is an undescribed species of Hypsocompe, known from just a few specimens. There is only one other record from Colorado (Baca Co.), thus, this is the northernmost record for the species (see alt text). Found under the sheet this morning by @nunesnaturalist.bsky.social !
The pattern of black markings on the white background of this moth give it a remarkably cryptic and unique appearance. This undescribed species is known as "Hypsocompe extrema of authors" on the Moth Photographers Group website, where it is acknowledged as an undescribed species known from Arizona and Texas. There are known specimens from New Mexico as well, and in 2022, Christian and I found the first record in Colorado- in Baca County. This one, from Huerfano County, pushes the known range of this rarely encountered moth even further north...  Huge thanks to Chris Pague and Michael Figgs for arranging access to the site!
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Andrew Warren @andybugguy.bsky.social · 16/05/2026
Southeastern Colorado remains absolutely parched, with almost no butterflies at the moment, but we’ve been finding a lot of really cool moths!
Old schoolhouse on shortgrass prairie at the junction of Huerfano County roads 120 & 103, with the Spanish Peaks in the background.
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John Wares @johnwares.bsky.social · 16/04/2026
Save the US Forest Service from destructive “restructuring” peer.org/letter-tell-...
peer.org
LETTER | Tell Congress to Save America’s National Forests and the Science That Protects Them
Sign our letter calling on Congress to to take immediate action to protect the U.S. Forest Service and the public lands it stewards.
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Aussie Moths @wa-moths.bsky.social · 15/04/2026
Abantiades hydrographus - Western Rain Moth Autumn rain and storms overnight brought this stunning Rain Moth to our Perth Hills moth light. She was big, ~80mm in length, and so beautiful! Such an honour to see these amazing moths. #teammoth #ausinverts #wildoz #Lepidoptera #inaturalist
Top view of a large moth with brown wings and two lighter stripes down each
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Bea Leiderman @bealeiderman.bsky.social · 08/04/2026
A very badass fly with feathery legs. Genus Porphyrochroa
A fly with very long legs and a thin body. The posterior legs literally look like feathers. The eyes are bright red. The fly is black
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Jason Rasgon @vectorgen.bsky.social · 07/04/2026
There are 214 Democrats in Congress. Where the fuck are the rest of them?
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Chuck Wendig @chuckwendig.bsky.social · 03/04/2026
This is fucking awful
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Andrew Warren @andybugguy.bsky.social · 22/03/2026
Look who showed up at my lights last night- a full SEVEN WEEKS earlier than the previous early date I have found it here...!!! Spring is springing way too early here along Colorado's parched Front Range... Glover's Silk Moth- Hyalophora gloveri
Large colorful moth with a maroon-and-white striped body at rest below UV lights, on a cool morning in Castle Pines, Colorado. The season is WAY ahead of schedule!
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Todays Moth @todaysmoth.bsky.social · 23/02/2026
A greater display of sexual dimorphism and size difference (c) Ray Simpson / iNaturalist
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Andrew Warren @andybugguy.bsky.social · 20/02/2026
Yes- a very small moth, smaller than anyone realized. Very easy to overlook! As soon as I had it in the vial I knew what it was- since folks around here have been looking for it for decades… Now that it’s pinned, I can verify she’s a female- the holotype and only other known specimen is a male!
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Aussie Moths @wa-moths.bsky.social · 22/02/2026
Cosmodes elegans - Green-blotched Moth These lovely moths are relatively frequent visitors to our Perth Hills garden but it’s lovely to see them every time! These moths are native to Australia and can be seen in most areas except the NT. #teammoth #ausinverts #wildoz #Lepidoptera #inaturalist
Side view of a moth with brown forewings that have a broad, looping vibrant green pattern across them
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Andrew Warren @andybugguy.bsky.social · 07/02/2026
Today's bingo card definitely did not have "rediscover one of North America's rarest moths" on it today, yet here we are, on Feb. 6, in Colorado! www.inaturalist.org/observations...
inaturalist.org
Ethmia monachella
Ethmia monachella in February 2026 by Andrew Warren. This is the first time this species has been found in Colorado in 118 years! It is only known fro...
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Jill Oberski, PhD @jilloberski.bsky.social · 05/02/2026
Hey bsky! I’d like to share some cool work I recently coauthored that integrates entomology, paleontology, and German cultural history. 🔶🐜⚡️ We discovered a fossil ant in the amber collection of Johann Wolfgang von Goethe! Read on for a delightful story of #museomics and #collectomics. >> 1/
A 3D micro-CT scan of ant Ctenobethylus goepperti encased in amber
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Cri 🕊🐝🐜📝🎭⚽😷 @crawlieswithcri.bsky.social · 05/02/2026
If ever there was a day to announce it - it's today. My paper (one I own) is finally online - we've got fact checking local politics, a spotlight on girls HS sports & Crawlies and MORE! Celebrating 50 years (I did NOT own in in 1976 lol) of publication Check us out! upperrogueindependent.com
upperrogueindependent.com
Upper Rogue Independent - Independent Community News
Independent local news serving Eagle Point, Shady Cove, Trail, Prospect, Butte Falls, and White City. Your hometown newspaper since 1976.
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Alisa Bokulich @alisabokulich.bsky.social · 03/02/2026
A long overdue #TikkaTheKitten video from my eldest today. #CatKiss
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Andrew Warren @andybugguy.bsky.social · 01/02/2026
Just a friendly reminder everyone, it is now “community science”, not “citizen science”, no matter what country you’re in. #communityscience
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Jess Calarco @jessicacalarco.com · 31/01/2026
It's easy to see these men as individual bad apples. But I'd argue--the bigger problems are "elite" universities' look-the-other-way approach to dealing with big-name bad actors, and the fact that, societially, we let "elite" universities play such a big role in determining who can get ahead.
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mcc @dryad.technology · 31/01/2026
So an odd thing here is that if you say "an unidentified man dressed in a Batman costume" your point is to communicate "it is not really Batman" but the problem is that the real Batman, within the fiction of the comic book "Batman", is also, literally, an unidentified man dressed in a Batman costume
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Aussie Moths @wa-moths.bsky.social · 25/01/2026
Entometa fervens - Gum Snout Moth This beautifully marked Gum Snout moth was resting on our moth light tent this morning. These large moths can be seen around many parts of Australia. #teammoth #ausinverts #wildoz #Lepidoptera #inaturalist
Picture of a large moth with its wings quite open. The forewings are fawn in colour with a pattern of darker spots forming three lines across the wings
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Dr. Katja Thieme (she/they) @katjathieme.bsky.social · 31/01/2026
Academics vying for a spot in Epstein‘s world. There are so many. I feel the need to make a thread, so I don’t keep confusing them. 1/
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Todays Moth @todaysmoth.bsky.social · 31/01/2026
Todays moth: The Merveille du Jour (Griposia aprilina) This dapper gentleman can be found across Europe and western Asia! Colour varies from green to an extremely pale mint #moths #mothposting
Image by the amazing Ben Sale https://www.inaturalist.org/photos/5173515Image by the amazing Michał Brzeziński https://www.inaturalist.org/photos/255539852Image by the amazing Biopix https://www.inaturalist.org/photos/1090603Image by the amazing Cossus https://www.inaturalist.org/observations/146129227
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