Ian Andrews
@suillia.bsky.social
Flies/sawflies mostly; mostly from Yorkshire, UK.
Run the UK Heleomyzid Recording Scheme...
https://dipterists.org.uk/heleomyzid-scheme/home
...and Yorkshire County Recorder for Sawflies
https://www.ynu.org.uk/recording-sections/sections/insects/sawflies
Run the UK Heleomyzid Recording Scheme...
https://dipterists.org.uk/heleomyzid-scheme/home
...and Yorkshire County Recorder for Sawflies
https://www.ynu.org.uk/recording-sections/sections/insects/sawflies
Reposted by Ian Andrews
Save the date! Come & meet the Dipterist Forum gang at the Staffs Invert Science Fair! Loads for kids dipterists.org.uk/events/staff... @royentsoc.bsky.social @flygirlnhm.bsky.social @davebriceflies.bsky.social @lancefly.bsky.social @suillia.bsky.social @nbntrust.bsky.social @britentsoc.bsky.social
February 3, 2026 at 10:58 AM
Save the date! Come & meet the Dipterist Forum gang at the Staffs Invert Science Fair! Loads for kids dipterists.org.uk/events/staff... @royentsoc.bsky.social @flygirlnhm.bsky.social @davebriceflies.bsky.social @lancefly.bsky.social @suillia.bsky.social @nbntrust.bsky.social @britentsoc.bsky.social
February arrives and the Gadwall are getting frisky...
February 1, 2026 at 5:29 PM
February arrives and the Gadwall are getting frisky...
Little Egret H3 still at Kilnwick Percy this morning...has been a regular by the lakes the last few weeks. A local bird from the @ldvnnr.bsky.social. @ynuorg.bsky.social @yorkswildlife.bsky.social
February 1, 2026 at 2:08 PM
Little Egret H3 still at Kilnwick Percy this morning...has been a regular by the lakes the last few weeks. A local bird from the @ldvnnr.bsky.social. @ynuorg.bsky.social @yorkswildlife.bsky.social
Scoured all the sunlit barriers, fence posts, benches and vegetation at #BemptonCliffs for Diptera on Monday, but not a winter-active fly to be seen, not even a Calliphora. And no flat-flies on this Kestrel either! Hard times for dipterists... 😄 @ynuorg.bsky.social @dipteristsforum.bsky.social
January 14, 2026 at 7:50 PM
Scoured all the sunlit barriers, fence posts, benches and vegetation at #BemptonCliffs for Diptera on Monday, but not a winter-active fly to be seen, not even a Calliphora. And no flat-flies on this Kestrel either! Hard times for dipterists... 😄 @ynuorg.bsky.social @dipteristsforum.bsky.social
My second invertebrate record of the new year at Cali Heath @yorkswildlife.bsky.social reserve this am. Once very scarce, Corizus hyoscyami is now a regular find in East Yorkshire throughout the year. @ynuorg.bsky.social
January 1, 2026 at 4:15 PM
My second invertebrate record of the new year at Cali Heath @yorkswildlife.bsky.social reserve this am. Once very scarce, Corizus hyoscyami is now a regular find in East Yorkshire throughout the year. @ynuorg.bsky.social
My first invertebrate record for 2026...Boreus hyemalis (Snow Flea) at Cali Heath @yorkswildlife.bsky.social reserve this am. Exciting to think what else might turn up this year. 😀 @ynuorg.bsky.social #mecoptera #ukwildlife
January 1, 2026 at 4:10 PM
My first invertebrate record for 2026...Boreus hyemalis (Snow Flea) at Cali Heath @yorkswildlife.bsky.social reserve this am. Exciting to think what else might turn up this year. 😀 @ynuorg.bsky.social #mecoptera #ukwildlife
Ravens very active and vocal up on the Yorkshire Wolds this morning...surprised to see so many, but it's a while since I've been up there in winter. @yorkbirding.bsky.social
December 14, 2025 at 5:36 PM
Ravens very active and vocal up on the Yorkshire Wolds this morning...surprised to see so many, but it's a while since I've been up there in winter. @yorkbirding.bsky.social
A flightless female moth...Pale Brindled Beauty...at Cali Heath @yorkswildlife.bsky.social reserve this morning. Only 4 degrees, but bright and plenty of insects around. @ynuorg.bsky.social #moths
December 13, 2025 at 7:52 PM
A flightless female moth...Pale Brindled Beauty...at Cali Heath @yorkswildlife.bsky.social reserve this morning. Only 4 degrees, but bright and plenty of insects around. @ynuorg.bsky.social #moths
Thinking this is Diaea dorsata, which I am sweeping/seeing repeatedly at Allerthorpe Common in East Yorkshire at the moment, so it must be well-established up here now? @ynuorg.bsky.social @yorkswildlife.bsky.social @ecology-digest.bsky.social @britishspiders.bsky.social
December 8, 2025 at 4:17 PM
Thinking this is Diaea dorsata, which I am sweeping/seeing repeatedly at Allerthorpe Common in East Yorkshire at the moment, so it must be well-established up here now? @ynuorg.bsky.social @yorkswildlife.bsky.social @ecology-digest.bsky.social @britishspiders.bsky.social
A dry, warm (10 degrees) day brought out quite a variety of invertebrates at Cali Heath @yorkswildlife.bsky.social reserve this morning. Just a few here...Pisaura, Curculio, Brachypera and Notostira perhaps. @ynuorg.bsky.social #ukwildlife
December 6, 2025 at 8:00 PM
A dry, warm (10 degrees) day brought out quite a variety of invertebrates at Cali Heath @yorkswildlife.bsky.social reserve this morning. Just a few here...Pisaura, Curculio, Brachypera and Notostira perhaps. @ynuorg.bsky.social #ukwildlife
What a fantastic record!
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
#Diptera #Entomology @dipteristsforum.bsky.social
November 20, 2025 at 7:51 PM
What a fantastic record!
Reposted by Ian Andrews
Can't make the @dipteristsforum.bsky.social Dipterist Day 2025 in Cambridge this Saturday 15th November - fear not! Sign up through the link in the page below and we'll send you the recordings. The wonders of Modern technology...
dipterists.org.uk/events/dipte...
Please share the love ❤️
dipterists.org.uk/events/dipte...
Please share the love ❤️
November 11, 2025 at 5:41 PM
Can't make the @dipteristsforum.bsky.social Dipterist Day 2025 in Cambridge this Saturday 15th November - fear not! Sign up through the link in the page below and we'll send you the recordings. The wonders of Modern technology...
dipterists.org.uk/events/dipte...
Please share the love ❤️
dipterists.org.uk/events/dipte...
Please share the love ❤️
Lots of Earwig activity at Cali Heath @yorkswildlife.bsky.social reserve today, with individuals burrowing into the sandy turf, leaving just the formidable pincers exposed. Common enough, but actually rather extraordinary things. @ynuorg.bsky.social #ukwildlife
November 9, 2025 at 7:11 PM
Lots of Earwig activity at Cali Heath @yorkswildlife.bsky.social reserve today, with individuals burrowing into the sandy turf, leaving just the formidable pincers exposed. Common enough, but actually rather extraordinary things. @ynuorg.bsky.social #ukwildlife
My first Snow Flea (Boreus hyemalis) of the winter at Cali Heath @yorkswildlife.bsky.social reserve today. Nice of her to pose out in the open on a fallen leaf, so didn't need to spend hours waiting for one to emerge from the Polytrichum moss! @ynuorg.bsky.social #Mecoptera #Boreidae #ukwildlife
November 9, 2025 at 3:41 PM
My first Snow Flea (Boreus hyemalis) of the winter at Cali Heath @yorkswildlife.bsky.social reserve today. Nice of her to pose out in the open on a fallen leaf, so didn't need to spend hours waiting for one to emerge from the Polytrichum moss! @ynuorg.bsky.social #Mecoptera #Boreidae #ukwildlife
Not too many birds at Bempton Cliffs this morning, so had a look at flies on the fence atop the cliffs. Nice variety, with muscids, calliphorids, anisopodids, heleomyzids, anthomyiids, coelopids and more. IDs on the photos. @rspbengland.bsky.social @dipteristsforum.bsky.social @ynuorg.bsky.social
October 29, 2025 at 9:00 PM
Not too many birds at Bempton Cliffs this morning, so had a look at flies on the fence atop the cliffs. Nice variety, with muscids, calliphorids, anisopodids, heleomyzids, anthomyiids, coelopids and more. IDs on the photos. @rspbengland.bsky.social @dipteristsforum.bsky.social @ynuorg.bsky.social
As good as it gets...
To see these beeflies, Australoechus sp, flying around in the Fynbos, SA, has to be 1 of my life’s highlights
Many were buzzing around Micrdon capitatus, the heady catstailbush - a rare endemic to this region. Rare because of habitat loss (land clearance) & invasive species.
Brilliant #beeflies
Many were buzzing around Micrdon capitatus, the heady catstailbush - a rare endemic to this region. Rare because of habitat loss (land clearance) & invasive species.
Brilliant #beeflies
October 28, 2025 at 7:24 PM
As good as it gets...
Gymnomus caesius (Heleomyzidae)...stunning orange and grey, spiny-winged fly of woodland, with males often holding territory on logs. All records gratefully received on iRecord. 🙂 Allerthorpe Common, East Yorkshire today. @dipteristsforum.bsky.social #heleomyzidae dipterists.org.uk/heleomyzid-s...
October 28, 2025 at 6:46 PM
Gymnomus caesius (Heleomyzidae)...stunning orange and grey, spiny-winged fly of woodland, with males often holding territory on logs. All records gratefully received on iRecord. 🙂 Allerthorpe Common, East Yorkshire today. @dipteristsforum.bsky.social #heleomyzidae dipterists.org.uk/heleomyzid-s...
Thaumatomyia notata, the Yellow Swarming Fly doing exactly that at Allerthorpe Common in East Yorkshire....10,000s of them on pine trunks, and particularly interested in this Hairy Shieldbug. @yorkswildlife.bsky.social @ynuorg.bsky.social @dipteristsforum.bsky.social
October 19, 2025 at 6:15 PM
Thaumatomyia notata, the Yellow Swarming Fly doing exactly that at Allerthorpe Common in East Yorkshire....10,000s of them on pine trunks, and particularly interested in this Hairy Shieldbug. @yorkswildlife.bsky.social @ynuorg.bsky.social @dipteristsforum.bsky.social
Reposted by Ian Andrews
Gonatherus planiceps female #Scathophagidae. A uncommonly collected, spring-flying, species of upland flushes and other wet habitats in the mountains. This one from Beinn Ghlas in the Ben Lawers NNR this May.
#Diptera #Entomology @dipteristsforum.bsky.social
#Diptera #Entomology @dipteristsforum.bsky.social
October 19, 2025 at 3:01 PM
Gonatherus planiceps female #Scathophagidae. A uncommonly collected, spring-flying, species of upland flushes and other wet habitats in the mountains. This one from Beinn Ghlas in the Ben Lawers NNR this May.
#Diptera #Entomology @dipteristsforum.bsky.social
#Diptera #Entomology @dipteristsforum.bsky.social
A few fungi-loving autumn flies from three different families at Cali Heath @yorkswildlife.bsky.social reserve yesterday. Names on ALT. @ynuorg.bsky.social @dipteristsforum.bsky.social
October 19, 2025 at 8:38 AM
A few fungi-loving autumn flies from three different families at Cali Heath @yorkswildlife.bsky.social reserve yesterday. Names on ALT. @ynuorg.bsky.social @dipteristsforum.bsky.social
Finally some fungi appearing locally in East Yorkshire, and with those come the fungus-breeding, spiny-winged heleomyzid flies, like this gorgeous Suillia notata at Cali Heath @yorkswildlife.bsky.social reserve. #heleomyzidae @ynuorg.bsky.social @dipteristsforum.bsky.social
September 28, 2025 at 8:49 PM
Finally some fungi appearing locally in East Yorkshire, and with those come the fungus-breeding, spiny-winged heleomyzid flies, like this gorgeous Suillia notata at Cali Heath @yorkswildlife.bsky.social reserve. #heleomyzidae @ynuorg.bsky.social @dipteristsforum.bsky.social
Reposted by Ian Andrews
Locust Blowfly, Stomorhina lunata, Fen Bog, N Yorkshire 24Sept @ynuorg.bsky.social @suillia.bsky.social
September 25, 2025 at 10:26 PM
Locust Blowfly, Stomorhina lunata, Fen Bog, N Yorkshire 24Sept @ynuorg.bsky.social @suillia.bsky.social
Locust Blowflies (Stomorhina lunata) continue to arrive...third of the summer at Cali Heath @yorkswildlife.bsky.social reserve today. It's been a bumper year for grasshoppers and crickets locally, so surely some must be breeding in those...or are they all migrants? 🤔 @dipteristsforum.bsky.social
September 7, 2025 at 6:23 PM
Locust Blowflies (Stomorhina lunata) continue to arrive...third of the summer at Cali Heath @yorkswildlife.bsky.social reserve today. It's been a bumper year for grasshoppers and crickets locally, so surely some must be breeding in those...or are they all migrants? 🤔 @dipteristsforum.bsky.social
Sallow Kitten on Sallow (!) at Cali Heath @yorkswildlife.bsky.social reserve today. What a stunning caterpillar. 🙂
September 5, 2025 at 6:08 PM
Sallow Kitten on Sallow (!) at Cali Heath @yorkswildlife.bsky.social reserve today. What a stunning caterpillar. 🙂
The Copper Peacock (Elaphrus cupreus) running around on mud at pond edge on Allerthorpe Common @yorkswildlife.bsky.social reserve this morning. #carabidae #ukwildlife
August 8, 2025 at 3:26 PM
The Copper Peacock (Elaphrus cupreus) running around on mud at pond edge on Allerthorpe Common @yorkswildlife.bsky.social reserve this morning. #carabidae #ukwildlife