Dipterists Society
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Dipterists Society
@dipterists.bsky.social
Our mission is to advance the scientific study, understanding, and appreciation of the insect order Diptera, or true flies.
dipterists.org
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Happy New Fungus Gnats! 🥂🦟🦟

Prof. Dalton Amorim and co-authors name 98 new species of Mycetophilidae from Singapore in a monograph just published in @integsyst.bsky.social

The paper can be downloaded for free from the following link: tinyurl.com/342cs43t

Enjoy!

@rudolf-meier.bsky.social
January 1, 2026 at 8:54 AM
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Periscelis wheeleri, the most grumpy old man fly I've ever seen
January 6, 2026 at 2:02 PM
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A new genus and new species of Mycetophilidae from Singapore. Paper authored by Fly School instructor Dalton Amorim, Fly School I alumnus @derschwingfliegen.bsky.social, and others
Happy New Fungus Gnats! 🥂🦟🦟

Prof. Dalton Amorim and co-authors name 98 new species of Mycetophilidae from Singapore in a monograph just published in @integsyst.bsky.social

The paper can be downloaded for free from the following link: tinyurl.com/342cs43t

Enjoy!

@rudolf-meier.bsky.social
January 4, 2026 at 5:46 PM
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Don't let this delicate little muppet fly fool you - larvae are voracious predators of armored scale insects! A member of the "gall" midge family, it has abandoned plant feeding for a meat-based diet (like many others).

#Cecidomyiidae: #Dentifibula viburni
Host = white prunicola scale; #Diaspididae
January 4, 2026 at 7:53 PM
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My first louse (flat) flies of the year! Stenepteryx (Crataerina) hirundinis puparia (Diptera: Hippoboscidae) with flies emerging about 5 months early. I probably should have kept them somewhere cooler!
January 4, 2026 at 5:48 AM
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Learn more about #diptera Funding available for Summer field meeting 2026 #fieldcraft #entomology #pollinators #foodwebs #detritivores
Application deadline is 5th Jan. Email enquiries@dipterists.org.uk
@britentsoc.bsky.social @dipterists.bsky.social @royentsoc.bsky.social @flygirlnhm.bsky.social
December 29, 2025 at 6:08 PM
Enjoy a lovely walk through a Colombian mountain-top forest with @tshahan.bsky.social! We suggest watching the whole video (youtu.be/sgGlXNOct9I?...), but if you want to skip to the flies 🪰 you can click here: youtu.be/sgGlXNOct9I?...

Amazing!
Macro Photography in COLOMBIA - Ep 2: SPIDERS, Flies, Orthopterans and more!
YouTube video by Thomas Shahan
youtu.be
December 26, 2025 at 3:36 PM
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my modest collection of flies with WIDE heads 🙇

a hammer-headed Richardia (Ecuador),
a stalk-eyed Chaetodiopsis (Mozambique),
a pointy-eyed Ophthalmoptera (Colombia),
and an antlered Richardia (Colombia)

why though? male-male competition? sexual selection? chime-in if you know!
December 22, 2025 at 6:53 PM
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Day 20 of #InsectAdvent

Nearly there, eyes on the prize of Christmas Day. Talking of eyes, some of the best eyed creatures are stalk-eyed flies including Plagoiocephalus latifrons (image @bertonemyia.bsky.social) we saw in Costa Rica

@royentsoc.bsky.social @dipterists.bsky.social
December 21, 2025 at 6:09 PM
Just in time for the holidays, a little gift: FLY TIMES Issue 75 (Fall 2025)! 🪰 📰 🎁

Check it out for all the latest Diptera/fly news.

**Don't forget to check out the call for grant applications through the society too!**

dipterists.org/assets/PDF/f...
December 21, 2025 at 8:13 PM
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Day 16 #InsectAdvent

The Nativity story is set in a stables in Bethlehem where the People were surrounded by animals, not all of them welcome. The stable fly Stomoxys calcitrans (Muscidae) gives the gift of a painful 'bite' to all attending mammals

@dipterists.bsky.social @royentsoc.bsky.social
December 17, 2025 at 3:15 PM
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Day 15 #InsectAdvent

And even the flies are getting festive. Sporting massive antlers akin to Moose or Reindeer, Phytalmia sp (Tephritidae) males, will use them to fight for their right.......to PARTY (with the opposite sex...)

@royentsoc.bsky.social @dipterists.bsky.social
December 16, 2025 at 4:18 PM
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Day 14 #InsectAdvent & Christmas cards are being sent/ received

Can you imagine having to write a card to this soldierfly - Parastratiosphecomyia stratiosphecomyioides. It has the longest name in the Animal Kingdom. Luckily the address is short..

@royentsoc.bsky.social @dipterists.bsky.social
December 15, 2025 at 1:41 PM
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Day 13 #InsectAdvent & have you decorated the tree yet?

What about this tree? This in fact the hairy whorls of a male Chaoborid or Phantom midge’s antennae. Packed full of sensors, this ‘tree’ is more than a mere decoration

@royentsoc.bsky.social @dipterists.bsky.social
December 14, 2025 at 5:26 PM
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For #FlyFriday or #Flyday why not a new podcast with me talking flies with Paul McGuinness on #WildLives (ignore the one of the worlds experts - many better than me!!) #bbcwildlife

podcasts.apple.com/gb/podcast/w...
Why flies matter, with Dr Erica McAlister
Podcast Episode · Wild Lives · 05/12/2025 · 50m
podcasts.apple.com
December 5, 2025 at 4:39 PM
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Its day 2 of #InsectAdvent

I think that this little fly ate too many mince pies! Welcome to Platyna hastata - whose bum maybe as wide as they are long!

Soldierflies or Stratiomyidae are some of the most eye-catching of the flies.

@royentsoc.bsky.social @dipterists.bsky.social
December 2, 2025 at 1:32 PM
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December 5, 2025 at 11:31 PM
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Day 6 of #InsectAdvent

Done all your prep for you Xmas party? Decorations up, food organised and your outfit looking amazing. Then relax like this Bombylius discolor - sitting down in its finest waiting for the action to start…

@royentsoc.bsky.social @dipterists.bsky.social
December 6, 2025 at 4:14 PM
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Day 5 of #InsectAdvent

The imbiber. The one that’s always finishing every last drop of wine

Rhingia campestris - the Heineken fly so called as it refreshes the parts other insects cannot reach..cheers

@royentsoc.bsky.social @dipterists.bsky.social
December 5, 2025 at 7:28 PM
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Day 3 of #InsectAdvent

For our Nativity themed posts what about a specimen from Natal (Portuguese for Christmas) that comes equipped with the best drinking straw!

Prosoeca ganglbaueri (Nemestrinidae) could even steal your drink from across the room

@royentsoc.bsky.social @dipterists.bsky.social
December 3, 2025 at 4:51 PM
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Ahhh happy Sunday night everyone. The wonderful @nhcooper123.bsky.social and @joshlukedavis.com thought it wise to ask me to talk about my fav specimens…

Enjoy. @dipterists.bsky.social @royentsoc.bsky.social @amentsoc.bsky.social
November 23, 2025 at 8:38 PM
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Legs, wings, spines abound!
Fungus gnat fornication.
Making more lil' flies.

#Mycetophilidae
Raleigh, North Carolina, USA
November 22, 2025 at 6:08 PM
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Look at those eyes! #flyday #bugskye #entomology #macro
November 21, 2025 at 4:51 PM
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A dipterist's dipteron, the elusive Borboropsis puberula. The only member of the family in the UK. Restricted to the Scottish Highlands. This one from Ben Lawers is probably the 7th UK record.

#Diptera #Entomology @dipteristsforum.bsky.social
November 20, 2025 at 5:04 PM