Next up for our GREAT ONTARIO BUG-OFF competition🪲🐝🎖️🏆 Coleoptera VERSUS Hymenoptera… This is a hard one folks… comment your favourite below!! 🤯

Welcome to Round 2- Hemiptera vs Phasmida! Vote in the comments to see who will win the golden thorax 🏆 Today's reps are a Dogday Cicada (Neotibicen) and a Northern Walking Stick (Diapheromera femorata)! #greatontariobugoff #hemiptera #phasmida #entomologicalsocietyofontario #ontarioinsects

Ernie's enjoying the snow and making his first snow-roach angel!❄🐜 #ernietheroach #entomologicalsocietyofontario #snowday

We had a clear winner this time! Odonata has made it to the next round 🐛 Get ready for our next vote this Friday🏆 #greatontariobugoff #entomology

Welcome to the first competition round in The Great Ontario Bug Off! 🪲✨Today’s bracket: Odonata vs Orthoptera We want to know which insect order Ontarians love best - vote in the comments to see who will win the golden thorax 🏆 #greatontariobugff #insectsofontario #entomologicalsocietyofontario

Ernie is being a very helpful roach this year!! He was found helping to sort Living Labs Malaise trap samples 🔬🪳🥼🧫🥽🧪 (I wonder if he knows that his eyes are on the top of his head……)

We’re excited to announce London Bug Day, hosted by Western’s Entomology Club! 🐞🐜🐛🦋 📅 Saturday, January 31, 2026 🕘 9:00 AM – 6:00 PM 📍 Western University — Mustang Lounge (University Community Centre) 🚗 Parking details to come

Over the next few weeks, we're going to find out which insect order Ontarians love the best (sorry we couldn't include them all!). Every Friday vote in the comments to see who will win the golden thorax!👑 Send us photos from your favorite order! #greatontariobugoff #insectsofontario

Join our great group of entomologists as an ESO member or renew your membership! 🐝 🌟 ESO memberships follow the calendar year- check in to your account to make sure you're still on the list! www.entsocont.ca/membership.h... #entomologicalsocietyontario #canadianentomology #insectlovers

As the Arctic warms, mosquitoes—and the diseases they carry—float north. A recent study finds Jamestown Canyon virus and snowshoe hare virus present in mosquitoes in Arctic and sub-Arctic regions of North America.

Happy New Year! Wishing everyone a 2026 full of fun and bugs! 🪳🪲🦟 #newyear #bugs #insects #entomology

Ernie has been getting into the holiday spirit and visiting some distant cousins in Laurens lab! #ernietheroach #entomologicalsocietyontario #familyvisit❤️

Christmas is almost here!!🎄✨ If you're still looking for ideas to gift your bug enthusiast friends, we think these are pretty cool🐛🦟 #entomologicalsocietyofontario #bugsforchristmas #giftideas #wishlist

The Fall newsletter is here! Check it out for info on society updates, events, and postings! www.entsocont.ca/uploads/3/0/... #entomology #outreach #bugday #eso

Ernie the presidential cockroach has gone on another excursion!! 🪳Ernie and the Harrow Field Entomology girls team won 1st place at pub trivia!!! 🥇🏆 We hope everyone is staying warm and not being too sad that there are no awesome bugs outside 😔☃️❄️

❄Winter might be keeping the bug spotting harder to do, but insect art keeps the vibe alive indoors ✨🐛 Send us your favorite bug pieces that keep you going through the winter! 🐞 #insectart #winterbugblues #entomologicalsocietyofontario

What looks like a simple piggyback ride is actually a purposeful mating ritual in the greenhouse millipede 🐛💕 The male climbs onto the female and uses his specialized gonopod legs to clasp her securely in place 🔐🦵This helps him stay steady and make sure the sperm transfer is right on target 🎯

With the start of a new year of board members, we thought we'd take the chance to introduce ourselves!👋 We have had so much fun in the past year running the accounts and look forward to continuing! Let us know if there's anything you would like to see🦋🦗🐝 #entomologicalsocietyontario #bugs4life

The Journal of the Entomological Society of Ontario just published a new volume📰🦟 Submissions to the journal are accepted any time, go to www.entsocont.ca/jeso.html to learn more! #entomologicalsocietyofontario #scientificjournal #JESO #insectresearch

Happy Halloween you kooky creature lovers 🕷️🕸️ This amazing pumpkin was carved by the ESO president herself 🎃🕷️🕸️ @ldesmart !!! Have a fun and safe night everyone!!!🧟👻🤖

Gavel pad in its new home at Harrow Research and Development Centre. Time to get to work! #entomology #insects #entomologicalsocietyofontario

Some photos from the ESO conference this weekend! It was so lovely to see everyone and the presentations were great!🪲🐜 Looking forward to seeing everyone again next year! 🎃

Thank you to everyone who submitted photos to the 2025 ESO Bug Eye Photo Contest! Voting is now LIVE for the People's Choice award, and closes Saturday, November 1st at 6PM ET. All photos can be viewed and voted upon here: forms.gle/iq1nT4uHp1YJ...

Dr. Vinayak Singh is a research scientist who specializes in insect molecular biology and RNA interference (RNAi)-based pest management. He integrates molecular and bioinformatics approaches to develop sustainable strategies for crop protection 🌾🧬🔬

Here is Avery Johnson, affiliated with the University of Guelph and AAFC! 🥼 @ave_johnsonn We’re very excited to learn about herbivory induced volatiles!! 👃🫑🥒🍅 If you’re presenting and want to be featured, send us a DM!!! 💌

Guess what everybody..... the conference is happening TOMORROW! 🐝😮 Here we are showcasing Hannah Bodmer, Affiliation: University of Toronto Misisssauga – Department of Biology; University of Toronto – Department of Ecology & Evolutionary Biology 🔬

The OPMC and ESO conference is LESS THAN A WEEK AWAY!!! 🤯🤩🐞🪲🕷️ Here is another one of our presenters for the conference, Anibal Castillo! 🤗 Anibal is a PhD candidate in the Integrative Biology Department at the University of Guelph! 🦟🌳 @anibalhcastillo.bsky.social

Our Annual Meeting is almost here!🐛 Over the next week we'll be sharing some of the presenters that will be showcasing their work- check out the meeting schedule so you don't miss their talks!! If you would like to feature your work, send us a message📩 #entomologicalsocietyontario #insectresearch

Today is National Day for Truth and Reconciliation 🧡 Each day, we honor the children who never came home, the survivors of residential schools, and their families and communities. Reflection, respect, and ongoing learning are essential steps toward reconciliation.

Felt like September 30th was coming too quickly?? 😬 Our Bug Eye contest submission deadline has been extended to October 10th! 📸🦗 See our website for more details www.entsocont.ca/bug-eye-phot... #entomologicalsocietyontario #bugeye #insectphotography

The funk has arrived to Bug Community Day! Stinkbugs can be friend or foe, depending on what they like to eat🐛🍎 1. Podisus maculiventris Andrew Colton 2. Chinavia hilaris (parasitized!) @clarissacapko 3. Cosmopepla lintneriana @clarissacapko 4. Euschistus sp. Natalie Savoia #stinkbugs #insects

Compete in ESO’s Bug Eye Photo Contest! Submit up to 3 unique images of insects for a chance to win! All Ontario residents (and international students living in Ontario) can submit! Deadline extended to September 30th, 2025! Full contest details can be found on our website.

Check out this assassin bug nymph (Reduvius personatus) for bug community day! Nymphs secrete a sticky substance that collects dirt and dust to create a layer of camouflage. 😶‍🌫️ #bugcommunityday #assassinbug #camouflage #nature #entomology #ontario

HAPPY BUG COMMUNITY DAY!! 🦟🦟🦟 Thank you @sierra.simioni for these photos!! 📸 Spotted a squad of striped bark lice (🪲 Graphopsocus cruciatus)—also known as tree cattle! 🌳✨ These tiny insects may look like pests, but they’re actually beneficial decomposers 🌱

Oecanthus fultoni 🦗 Also called the snowy tree cricket or thermometer cricket, is a great example of how cool (and useful) insect behavior can be 🤯 Its chirp rate changes with the temperature 🌡️, so you can estimate the temperature just by listening👂

Happy Bug Community Day!! As it starts getting cooler, its our last chance to see some fun bugs! 🐛 1. Psyche caterpillar @clarissacapko 2. Ailanthus webworm moth @menage.et.trois 3. Euchaetes egle @matteo.girardo #bugcommunityday #ontarioinsects #moths #entomology

#Invertefest #Inverts #wasp 🐝 @entsocontario.bsky.social According to iNaturalist this is a Four-toothed Mason Wasp . I haven’t seen these before , also who counts wasp teeth.

Time for a game- Spot the Katydid!🔎 🦗 The Fork-tailed Bush Katydid gets its name from the male’s tail, which looks like a tiny green horseshoe—perfect for lucky bug spotting! This insect is found across Southern Canada. #katydid #ontarioinsects #ispy #entomologicalsocietyofontario

Happy Bug Community Day! Check out this awesome Io moth caterpillar 🐛They look cool but don’t touch - they excrete a venom that is ouch! It turns into a really colorful moth called the peacock moth 🦚 Creds for this awesome pic to Chelsea Young #bugcommunityday #moth #entomology #nature #iomoth

Happy Bug Community Day People!!!🐝 The species you are looking at today is the Trogus pennator (no common name) 🤯 This ichneumon wasp plays an important ecological role as a parasitoid of swallowtail butterfly caterpillars 🦋🐛 Thank you @matteo.girardo for the awesome photo!! 📸

Guelph Bug Day is happening THIS SUNDAY! 🐝🪲🐜 📅 Sunday, August 24, 2025 🕙 10 AM – 4 PM 📍 Summerlee Science Complex, Waasamowin Atrium – University of Guelph This FREE, hands-on event is perfect for curious minds of all ages🐛🐞🕷️

It's Bug Community Day — Agriculture Pest Edition! 🚜🕷️ Today, we're spotlighting pests being studied by graduate students here in Ontario! 🔬 1. Colorado potato beetle - Andrew Colton 2. Thrips parvispinus @ave_johnsonn 3. Strawberry aphids @karlibarton 4. Switchgrass gall midge @clarissacapko

This year, the ESO joins the OPMC at the Royal Botanical Gardens! 🦗🌳 Attendees can register for both the ESO and OPMC portions, or just one. Abstract submission for each portion is separate, so please check out both the ESO and OPMC websites. Early bird registration ends Sept 12!

Instead of Old Macdonald's farm, its the Ants farm, and on this farm they have aphids! 👨‍🌾🐜 Several species of ants and aphids have a symbiotic relationship where the ants provide protection and aphids produce honeydew for the ants to eat 💧 #entomology #ants #bugsofontario #aphids

Check out this Northern crescent butterfly for Bug Community Day! Do you think a butterfly landing on you a sign of good luck, salty skin, or something else? Share your thoughts in the comments! Photo credit: @nikki_reg1 #entomology #butterfly #nature #bugcommunityday #ontariobugs

Meet the firefly larva! In Ontario, nearly all firefly species glow in their larval stage 🔥🪰 As adults, fireflies flash again for courtship communication! Each species has its own unique pattern and slightly different flashing colours 💡❤️ Reducing light pollution helps keep fireflies in your yard!

Happy Bug Community Day everyone! 🕷🕸 Thanks so much to @lilly_t_2 for these awesome spidy pics! #BugCommunityDay #entomology #spider #insectpics #ontarioinsects 43s

The 2025 ESO Board Member Elections are here! 🌟 All members of the Society are invited to vote for the new board members (and a potential new Fellow!). Check out the candidates in the Spring Newsletter and find the link to vote in your email. Voting ends July 28th!! 💌 #eso

Mayfly season is here in Ontario! 🪰🌊 These insects spend up to 3 years underwater as nymphs 🤿 After molting into winged adults, they only live from a few hours to a couple of days.🧬⏳ Their mass emergence feeds fish 🎣, birds 🐦, and bats 🦇, and signals clean, healthy freshwater ecosystems! 💧🌱

🦋✨ Check out these Lepidopterans for Bug Community Day! Every Friday we share your amazing insect photos to celebrate the dazzling diversity of Ontario's bugs! 🐛 Thanks for these great photos: 1. @clumsy_bugs 2. @cameronmailhot 3. @clumsy_bugs 4. @clarissacapko #BugCommunityDay #OntarioInsect