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Antoine Guiguet

@antoineguiguet.bsky.social
1.8K followers 1.4K following 86 posts

Entomologist, Cecidologist. Researcher and Curator for Hymenoptera at MNHN, Paris. antoine-guiguet.com

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Reposted by Antoine Guiguet
ascalaphid @ascalaphid.com · 15/07/2026
really enjoying this figure on sexual dimorphism in hopliine beetles pmc.ncbi.nlm.nih.gov/articles/PMC...
males are the one on the left in each pair
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ISYEB @isyeb.mnhn.fr · 22/06/2026
Nouvelle publication dans le Bulletin de la @socentomolfr.bsky.social 131(2) "Première mention en France métropolitaine de Melikaiella tumifica (Osten Sacken, 1865), découverte..." #Guêpe_gallicole #galles #espèce_introduite @antoineguiguet.bsky.social @isyeb.mnhn.fr et al. doi.org/10.32475/bse...
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ISYEB @isyeb.mnhn.fr · 01/07/2026
Dans un podcast Big Bang sur @franceinter.fr un playdoyer scientifique pour les 🕷️et les 🐝 avec Kaina Privet @mecadev.bsky.social & @antoineguiguet.bsky.social @isyeb.mnhn.fr afin d'écarter toutes nos idées reçues et nos craintes infondées sur ces espèces. 🎙️ www.radiofrance.fr/franceinter/...
radiofrance.fr
Guêpe VS Araignée
Christophe Galfard reçoit l'autrice Cécile Coulon, l'écologue Kaïna Privet et l'entomologiste Antoine Guiguet pour un combat entre guêpe et araignée.
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Merve Tabur @mervet.bsky.social · 14/04/2026
My research was featured by Universiteiten van Nederland & Institutions for Open Societies at Utrecht University. Here I discuss futurisms, SWANA SF, the work of @ahmednaji.bsky.social & my co-edited volume, The Speculative Route. Available in English below. www.linkedin.com/pulse/scienc...
linkedin.com
Science Fiction, maar dan heel anders
Hoe zit het met de toekomst? Mijn collega Merve Tabur onderzoekt science fiction uit Zuidwest-Azië en Noord-Afrika. Daarin spelen niet de eeuwige techbro's met doemscenario's of 'oplossingen voor de w...
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mecadev.bsky.social @mecadev.bsky.social · 25/03/2026
@kaina-privet.bsky.social #MECADEV a été invitée sur le plateau de Big Bang avec Cécile Coulon et @antoineguiguet.bsky.social pour parler de Guêpe versus Araignée. www.radiofrance.fr/franceinter/...
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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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Jacintha Ellers @jellers.bsky.social · 25/01/2026
Excited about this new paper studying competition between lipid-scavenging #parasitoids sharing the same host. The later-arriving species shifts to #hyperparasitism to ensure sufficient resources. Don't miss the amazing photos! #nasonia #evolution #behaviour www.sciencedirect.com/science/arti...
sciencedirect.com
Lipids as currency in parasitoid competition: Interactions between two lipid-scavenging species
Lipid scavengers are organisms that rely on exogenous lipid acquisition as they lack the ability to synthesize fatty acids de novo or in sufficient qu…
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NL Institute of Ecology NIOO-KNAW @niooknaw.bsky.social · 23/02/2026
New publication: #Lipids as currency in #parasitoid competition: #Interactions between two #lipidscavenging species. doi.org/10.1016/j.ji...
Graphical abstract Lammers (2026)
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Colin Purrington @colinpurrington.bsky.social · 22/02/2026
Profile of @ceiseman.bsky.social's leafminer work. #inaturalist #leafminers #insects #moths #flies #sawflies #beetles #entomology www.inaturalist.org/blog/124811
inaturalist.org
Identifier Profile: @ceiseman
This is the twenty-ninth entry in an ongoing series profiling the amazing identifiers of iNaturalist. An iNaturalist observation records an encounter between an observer and an organism or recent evid...
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Mongabay @mongabay.com · 14/02/2026
An emerald-green moth missing for nearly 150 years has been rediscovered in South Africa. Photos posted online confirmed the survival of Drepanogynis insciata, once known only from 1870s specimens — highlighting the power of citizen science platforms like iNaturalist.
news.mongabay.com
Citizen science rediscovers rare South African moth
A strikingly handsome emerald-green moth, lost to science for nearly one-and-a-half centuries, has been rediscovered in South Africa by citizen scientists who posted photographs of it online. The…
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ZooKeys @zookeys.pensoft.net · 13/02/2026
New Caledonian Forests are full of hidden natural treasures! 🌿🦋 This study describes two spectacular new species of Caloptilia moths - 𝘊. 𝘢𝘶𝘨𝘦𝘢𝘴 and 𝘊. 𝘤𝘦𝘳𝘺𝘯𝘦𝘪𝘢 - discovered in the Parc des Grandes Fougères. Read the full study: doi.org/10.3897/zookeys.1268.173885
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Ainsley S @americanbeetles.bsky.social · 06/02/2026
just a little baby child (from @mosquitolab.bsky.social's pitfall samples; I can see how this one got sorted into the beetle pile)
teeny tiny wingless parasitic wasp, probably genus Baeus. It is so round and fat and perfect. Its head is the size of the rest of its body.
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ISYEB @isyeb.mnhn.fr · 12/02/2026
1 équipe de chercheurs menée par @antoineguiguet.bsky.social @isyeb.mnhn.fr révèle la découverte de 2 nvelles espèces de papillons minuscules au mode de vie inédit,découverts en Nvelle-Calédonie Publiée @zookeys.pensoft.net l’étude révèle un mode de vie larvaire unique, décrit pour la première fois
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Saimi Hanma ⚔️ サイミ @saimihanma.northsky.social · 06/01/2026
This is really cool, it's a display of all the bugs found on a single tree. #Invertebrate
A large display with thousands of insects, most of them tinyA section of the display of bugsAnother sectionAnother section with some of the larger bugs
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Louis Nastasi @toomanywasps.bsky.social · 28/01/2026
Some good news - a new #gall #wasp paper from our group! This is one of my favorites so far - two new Diastrophus species, a review of “cryptic” galling (galls with no external sign of presence), and some novel hypotheses regarding evolution of gall inquilines. See more here: doi.org/10.1080/0022...
tandfonline.com
Minimalism is in: two new Diastrophus (Hymenoptera: Cynipidae) species inducing inconspicuous galls on cinquefoils (Rosaceae: Potentilleae), with evaluation of the extended phenotype across gall wasps
While the majority of galling insects induce visible alterations to their host plants, there are many species that induce inconspicuous galls, changing only the internal structure of the host plant...
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Xing-Xing Shen @xingxingshen.bsky.social · 29/01/2026
Excited to share a new piece of work in @embojournal.org Parasitoid wasps hijack a bacterial gene that governs venoms against host. Coauthors include @rokaslab.bsky.social and others. Read more from: link.springer.com/article/10.1...
link.springer.com
A bacterial gene acquired by parasitoid wasps contributes to venom secretion against host defence - The EMBO Journal
Horizontal gene transfer (HGT) is an important source of gene innovation in prokaryotic and eukaryotic organisms. Several genes acquired by hosts of parasitoid wasps via HGT have been reported to prot...
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TAKAO★WATANABE🌿10/23-28Exhibition @watanabetakao.bsky.social · 17/01/2026
Until recently, Bluesky didn't rotate images when you turned your mobile device sideways. Since this feature now rotates content, I'll post tall images as-is 😉 #Illustration #LineArt #CommentPls
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Miles Zhang | 张远濛 @ymilesz.bsky.social · 26/01/2026
The preprint of the first of the batch of parasitoid wasp genomes that we are generating is now out. Erythrina gall wasp is an invasive pest on the Hawaiian wiliwili tree, we were able to generate a HiFi genome using 1/10 of a flowcell, costing only ~$100 for the sequencing.
Image of Quadrastichus erythrinae and its gallsSummary figures of the Q. erythrinae genome
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Michael Skvarla @napoleonicento.bsky.social · 23/07/2025
There's a new episode of the Arthro-Pod podcast out. We interviewed @toomanywasps.bsky.social about gall wasps, especially the understudied herb gall wasps. www.podbean.com/eas/pb-xcecc...
podbean.com
Arthro-Pod Episode 183: Gall wasps with Louis Nastasi
Welcome back Arthro-Poders! Today we chat with Louis Nastasi about gall wasps. Louis recently defended his PhD dissertation at Penn State, which focused on the herb gall wasps (Cynipidae: Aulacideini)...
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Louis Nastasi @toomanywasps.bsky.social · 20/10/2025
UIowa put out a short news story about our lab’s gall wasp work! Take a look if you want to see the excellent work that our students are doing.
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Natural History Museum, London @nhm-london.bsky.social · 25/10/2025
Vampire moths might sound more horror film than natural world, but they’re 100% real! 😱 See why some moths pick human blood over fruit juice in this week’s Surprising Science. 🩸🦇
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Tim Janicke @timjanicke.bsky.social · 22/10/2025
Does #SexualSelection fuel #Speciation? Our new #meta-analysis of comparative studies finds support for a positive relationship, but the rather moderate global effect suggests it’s not necessarily a dominant force. doi.org/10.1093/evle...
doi.org
Sexual selection and speciation: a meta-analysis of comparative studies
Abstract. Understanding the drivers of biodiversity is a central goal in evolutionary biology. In particular, sexual selection has long been proposed as a
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Entomological Society of America @entsocamerica.bsky.social · 22/10/2025
Arthropod Photo of the Week: October 22, 2025 Jagged ambush bug Phymata sp. Hemiptera: Reduviidae By Tom Astle (@tjalamont.bsky.social), Montana, USA #arthropodPOTW
A close-up image of a yellow insect with textured, bumpy skin perched on a bright yellow flower. The background is blurred, highlighting the details of the insect and petals.
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Vincent Debat @vincentdebat.bsky.social · 19/10/2025
Nice paper showing a major effect of wing morphology on diptera flight by Camille Le Roy, Florian Muijres and collegues! doi.org/10.7554/eLif...
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Petra Korlević @petrathepostdoc.bsky.social · 18/10/2025
Day 18 #Invertober2025 - Black & yellow mud dauber (Sceliphron caementarium) 🧱 #SciArt #invertebrates
semi-realistic drawing of a parasitoid wasp, with yellow legs and a dark brown almost black body, with four light brown wings, and the abdomen sitting on a super thin stalk to the thorax, on a black background.semi-realistic drawing of a parasitoid wasp, with yellow legs and a dark brown almost black body, with four light brown wings, and the abdomen sitting on a super thin stalk to the thorax, on a white background.
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Antoine Guiguet @antoineguiguet.bsky.social · 17/10/2025
Beautiful gall 😍
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Jess Awad @parasitoidrex.bsky.social · 25/08/2025
Just published! A new discovery in biological pest control: Synopeas ruficoxum, a natural enemy of the soybean gall midge in North America. 🧪🧵 doi.org/10.3897/jhr....
A small black platygastrid wasp, around 1.5 mm long, with an elongate metasoma, veinless wings, and a small spine on the mesoscutellum. Lateral view.
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Miles Zhang | 张远濛 @ymilesz.bsky.social · 09/10/2025
More wasps from Sichuan! This time we describe a new rose gall found on a protected endemic rose from China. We named the gall wasp Diplolepis nezha and its ichneumonid parasitoid Orthopelma aobing, after characters from the Chinese legend/popular animated film. mapress.com/zt/article/v...
Movie poster of Nezha II featuring Ne Zha, with its head replaced by Diplolepis nezhaMovie poster of Nezha II featuring Ao Bing, with its head replaced by Orthopelma aobing
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Antoine Guiguet @antoineguiguet.bsky.social · 10/10/2025
To end the week, a cynipoid with crazy long antennae I found in the MNHN collection this morning! 👀✨ #wasp #insect
Ganaspis sp. with very long antennae!!
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Colin Purrington @colinpurrington.bsky.social · 10/10/2025
Male and female chalcids that emerged from redbud seedpods. Both are in the genus Eurytoma and are possibly the same species but further identification is beyond my skill set. I can't find any mention of them being recorded as parasitoids of redbud bruchids. 🌿 #wasps #hymenoptera #insects #bruchidae
Two photographs of black wasps that look roughly the same except that top one has hairy antennae with large gaps in between the segments, while the bottom one has more beadlike antennae. The lower one also has an ovipositor. Their legs are partly orange and their head and thorax have pits and short white hairs.
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Colin Purrington @colinpurrington.bsky.social · 05/10/2025
Not my photograph but thought others would enjoy. And if you know what it is, Kenneth Geisert would appreciate an ID. 🌿 #lepidoptera #peru #insects #moths #inaturalist www.inaturalist.org/observations...
inaturalist.org
Butterflies and Moths (Order Lepidoptera)
Butterflies and Moths from Tambopata, Peru on June 2, 2025 at 10:28 PM by Kenneth Geisert. Finca Las Piedras Time and location approximate
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Matt Bertone @bertonemyia.bsky.social · 23/09/2025
Dark taxa are extremely diverse organisms that remain largely undescribed due to small size, subtle differences, & few experts. Take this quiz to find out what you are - I'm a gall midge! whatdarktaxonareyou.static.domains/insect-quiz.... by @vivianfeng.bsky.social & @flyliceresearch.bsky.social
A dark, hairy gall midge fly on a white sheet. It has long legs and antennae and a red neck.Quiz results showing I'm a gall midge or cecidomyiid
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Colin Purrington @colinpurrington.bsky.social · 22/09/2025
Telltale signs of a bark-mining moth, likely Zimmermannia bosquella (Nepticulidae). 🌿 #lepidoptera #moth
Maze-like swellings on a small green stem.
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ISYEB @isyeb.mnhn.fr · 15/09/2025
In Proceedings of the Royal Society B: Biological Sciences, 292(2054)20251133 #OpenAccess "Bayesian modelling of the fossil record enlightens the evolutionary history of Hemiptera" #bayésienBrownianBridge @mat-bod-evo-23.bsky.social ., Peng,A., Nel,A. @isyeb.mnhn.fr et al. ➡️ doi.org/10.1098/rspb...
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Cornille “Eclectic” Lab @cornilleamand.bsky.social · 28/06/2025
ℹ️ ESEB 2025 Satellite Symposium: "𝘌𝘤𝘰𝘭𝘰𝘨𝘪𝘤𝘢𝘭 𝘎𝘦𝘯𝘰𝘮𝘪𝘤𝘴 𝘰𝘧 𝘊𝘰𝘦𝘷𝘰𝘭𝘶𝘵𝘪𝘰𝘯"🧬 📅 Wednesday, Aug. 20, 2025 🕑 2:00 PM This exciting half-day symposium will bring researchers exploring the genomic basis & ecological impact of coevolution across systems and taxa. 🔗 𝐒𝐮𝐛𝐦𝐢𝐭 𝐲𝐨𝐮𝐫 𝐚𝐛𝐬𝐭𝐫𝐚𝐜𝐭 𝐡𝐞𝐫𝐞: lnkd.in/d2-FN8PB
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Mariposa Nature Tours @mariposanature.bsky.social · 27/06/2025
It's #FrohawkFriday, the day we celebrate the butterfly studies and artwork of FW Frohawk. Today features Painted Lady - Frohawk knew it as an annual migrant, but little did he know just how remarkable they are, capable of crossing the Atlantic... nature.com/articles/s41... #butterflies
Plate 26 of FW Frohawk's 'Natural History of British Butterflies', featuring Painted Lady (Vanessa cardui)
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Alex Wild @alexwild.bsky.social · 16/06/2025
A gallery of plant galls and gall-making insects.
alexanderwild.com
Gall-making insects - Alex Wild
Many insects induce plants to grow unusual swellings to feed and house them. This gallery shows a few of them.
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Niklas Wahlberg @lepphylo.bsky.social · 03/06/2025
Oh wow, a new lepidopteran fossil dated to 236 My! Along with a reanalysis of molecular data using the new calibration. Are Lepidoptera really older than 300 My? www.sciencedirect.com/science/arti...
sciencedirect.com
Back to the poop: the oldest hexapod scales discovered within a Triassic coprolite from Argentina
Life on Earth nearly came to an end during the end-Permian mass extinction (EPME; c. 252 Ma). In its aftermath, the Triassic witnessed the adaptation …
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Andrej Spiridonov @andrejpaleo.bsky.social · 23/05/2025
Modern tree-dwelling sloths are dwarf morphs of (usually) ground dwelling giant sloths 😮 reminds me the evolutionary trajectories of dinosaurs into birds. www.science.org/doi/epdf/10.... 🧪 ⚒️ #Paleobio #EvoBio #Geology
Phylogeny of slothsBody size evolution of sloths on their phylogeny
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Nicolas Alexandre @nicmalexandre.bsky.social · 21/05/2025
🚨New paper alert!🚨 We show that hummingbird beaks have changed in shape & size since around WWII, driven by the rise of commercialized feeders! 🧵 📄 Paper: dx.doi.org/10.1111/gcb.... #ornithology #evolution #GlobalChangeBiology
dx.doi.org
Supplemental Feeding as a Driver of Population Expansion and Morphological Change in Anna's Hummingbirds
Bird beaks are highly adaptable, with the potential to undergo rapid morphological shifts in response to environmental change such as climatic variation or food availability. Anna's Hummingbirds (Cal...
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Tatsuya Nobori @tatsuyanobori.bsky.social · 22/05/2025
Excited to share my new Tansley Review @newphyt.bsky.social on emerging single-cell and spatial omics technologies, many of which are just beginning to be applied in plant biology! Big opportunities lie ahead for the field. [1/n]  nph.onlinelibrary.wiley.com/doi/10.1111/...
nph.onlinelibrary.wiley.com
Exploring the untapped potential of single‐cell and spatial omics in plant biology
Advances in single-cell and spatial omics technologies have revolutionised biology by revealing the diverse molecular states of individual cells and their spatial organization within tissues. The fie...
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Ville Sinkkonen @villesinkkonen.bsky.social · 19/05/2025
Carboniferous insects
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Alexandra Witze @alexwitze.bsky.social · 15/05/2025
New Harvard grant terminations in the geosciences (plus others - geosciences are just my jam) are up at grant-watch.us/nsf-data.html. They include work on tracking mercury pollution in the Arctic; the longterm atmospheric impacts of 2022's Tongan eruption; and how earthquakes rupture the ground. ☠️
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Antoine Guiguet @antoineguiguet.bsky.social · 16/05/2025
To end the week, a kawai gall wasp ✨ male of Plagiotrochus quercusilicis #gall #insect #wasp
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Muséum national d’Histoire naturelle @mnhn.fr · 13/05/2025
Venez soutenir les jeunes chercheurs et chercheuses du Muséum et passionnez-vous pour leurs sujets de #recherche ! 📅 Du 14 au 16 mai, assistez au 30e Congrès des jeunes chercheur·e·s du Muséum à l'Amphithéâtre Verniquet au Jardin des Plantes. Inscriptions gratuites 👉 framaforms.org/inscription-...
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Society for the Study of Evolution @sse-evolution.bsky.social · 06/05/2025
Join SSE, @asn-amnat.bsky.social & @systbiol.bsky.social in a Week of Action for NSF! Call and write congress and engage with colleagues, friends and family about the importance of NSF funding! Our Media Tool can help you get started: shorturl.at/i7WfU #WithoutNSF #SaveNSF #SupportNSF
SSE, SSB, and ASN logos. Text: Tri-societies Week of Action for NSF. Science under siege: Over 1000 NSF grants have been terminated by political appointees- threatening the foundation of American innovation and education, and more cuts loom; entire research programs are being erased without explanation. What’s at stake? STEM education for K-12 students, jobs and infrastructure in rural communities, support for veterans in research and education, cybersecurity and national defense innovation, global leadership in science and technology. Join the week of action: Contact Congress: Switchboard: (202) 224-3121, tell them to protect NSF. Share your story: Post on social media #WithoutNSF #SupportNSF #SaveNSF, engage local media; use our media tool to reach out to local reporters and newspapers; engage others: communicate the importance of NSF to colleagues, friends, and family.
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Aileen Berasategui @berasymbionts.bsky.social · 06/05/2025
🎉 We’re hiring! Two ERC-funded #PostdocJobs on insect–phytopathogen mutualisms are available in my lab. Explore the chemical and molecular evolution of symbioses! 🧪Chemical ecology: tinyurl.com/chem-ecol-symb 🦠Phytopathology & mutualisms: tinyurl.com/symb-plantpath #SymbioSky #PlantPathology
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Chris van Swaay @chrisvanswaay.eurosky.social · 05/05/2025
Spring 2025 has been very good for the Map (A levana, landkaartje) on Dutch Butterfly Monitoring transects, recovering after a series of dry years with a large 3rd gen in 2024. However the lack of rain now is also worrying for the next generations.
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Torsten Dikow @tdikow.bsky.social · 30/04/2025
#WorldRobberFlyDay assassin flies + their prey are fascinating - here Diogmites nigripennis (Macquart, 1847) (Dasypogoninae) with wasp prey - USNMENT00832604 - Costa Rica: Estación Biológica La Selva, 2010-08-19 - full details here n2t.net/ark:/65665/3... #FlyWeek
assassin fly with prey on an insect pinassassin fly with prey on an insect pin
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