Fly School

@dipteracourse.bsky.social

Fly School is a two week course for those who want to gain a more comprehensive understanding of Diptera. The next Fly School will be July-August 2026. dipterists.org/fly_school.html

If you're enjoying these posts (and #flies 🪰 in general) please visit our website: dipterists.org You can become a member and find out how you can join Fly School in the future. We'd love to see you!

Matt Bertone@bertonemyia.bsky.social · 4d ago

Sometimes you've gotta go metallic to mimic your model! This common tropical hover #fly at the top is a convincing mimic of the local orchid #bees in the genus #Euglossa (bottom). #FlySchool2026 #Syrphidae: #Ornidia obesa Soltis Center, Costa Rica

Two metallic green winged insects on a white background, one at the top and one at the bottom. The top one is a hover fly and the bottom is an orchid bee.

@flygirlnhm.bsky.social @riccardi-p.bsky.social @dipteracourse.bsky.social @teamdiptera.bsky.social

Matt Bertone@bertonemyia.bsky.social · 7d ago

Be a dipterist. Be in Costa Rica for #FlySchool2026. See a muscoid #fly perching on a leaf. Tell student so they can collect it. Success!! Wait a minute 🤔 That's not a fly, but weevil mimicking one! This was so convincing, even rapidly moving & poking its wings out 🥰 #Curculionidae: cf. #Mnemynurus

A weevil with red around its neck, resembling the eyes of a fly. It has large brown eyes and a long yellow proboscis curving under the body. It's on a white background facing the viewer.

Pet peeve of mine, but butterflies are really not important pollinators, most of them. They are pretty, yes. But they are nowhere near as important as flies and beetles and bees.

Panorpa insolens, a scorpionfly, defends her delicious mystery lump from a patient flesh fly (Sarcophagidae). Wing-flagging in Panorpa is used for both intraspecific and interspecific communication, and in some species studied, these displays are often used to guard food from other scavengers