DipteristsForum

@dipteristsforum.bsky.social

The society aims to promote the study, recording and conservation of true flies (Diptera). Our focus is on the British Isles, but we foster links with dipterists throughout Europe and further afield.

https://dipterists.org.uk/home

@sjthomasbotany.bsky.social Oct 11, 2026, 10:50 AMReposted by @dipteristsforum.bsky.social

Phytomyza germenilicis now published in collaboration with @dan-h-n.bsky.social, Carina van Steenwinkel & Rens Hendrickx. Look out for its distinctive mines on Holly (Ilex) seedlings this winter. @dipteristsforum.bsky.social @panspecieslisting.bsky.social

www.researchgate.net/publication/...

A lateral macro of a very small fly. It is mostly grey with some yellowish areas.

A composite image showing the pale, winding leaf mines of P. germenilicis on various dark green holly leaves.

Fig. 7. Larval leaf mines of P. germenilicis (a) developing or abortive mines on cotyledons of Ilex aquifolium, Denny Wood, Hampshire, UK (DH); (b) mines on seedling of Ilex aquifolium with puparium, Denny Wood, Hampshire, UK (DH); (c) mature mine on Ilex aquifolium, Meerhout, Antwerp Prov., Belgium (CVS); (d) mature mine on Ilex crenata, Kerkhoven, Limbourg Prov., Belgium, (CVS); (e) mines on Ilex crenata, Kerkhoven, Limbourg Prov., Belgium, (CVS).

@dipteristsforum.bsky.social Oct 10, 2026, 9:21 AM

Autumn DF Bulletin is now out! Must read for anyone interested in Diptera. Members can read/download latest and back issues free online. Non members can access past issues for free. Annual Membership from just £8 with access world class resources including keys. Join us!
dipterists.org.uk/bulletin

@dipteristsforum.bsky.social Oct 7, 2026, 5:15 PM

Get along to see those nice BENHS people at their Annual Exhibition - lots to see and clever people to catch up with!
@britentsoc.bsky.social

dipterists.org.uk/events/benhs...

@biologicalrecording.co.uk Oct 7, 2026, 2:16 PMReposted by @dipteristsforum.bsky.social

🪰 Meet Britain’s largest fly! The Hornet Robberfly can reach 2.5cm and mimics a hornet as it hunts flies, wasps, grasshoppers and beetles.

Learn more w/ @kitenet.bsky.social on 8 Oct in our Robberflies webinar!

🎟 www.eventbrite.co.uk/e/1976908981...

@dipteristsforum.bsky.social

@dipteristsforum.bsky.social Oct 7, 2026, 11:46 AM

Last chance to book this excellent course #fliesarefantastic #fliesareimportant

@biologicalrecording.co.uk Oct 6, 2026, 9:02 AMReposted by @dipteristsforum.bsky.social

🪰 Big fly + moustache = robberfly!

Learn how to spot these fascinating predators and tell them apart from similar flies in our online Robberflies webinar with @kitenet.bsky.social on 8 Oct 🌎 🧪

🎟 www.eventbrite.co.uk/e/1976908981...

@dipteristsforum.bsky.social @uk-soldierflies.bsky.social

@flygirlnhm.bsky.social Oct 2, 2026, 3:02 PMReposted by @dipteristsforum.bsky.social

For #flyfriday - paratypes of Machimus cowini - the Manx robberfly seen here in the Manx Museum entomology collections

The Manx robberfly was 1st discovered on the Isle of Man in the 1940s but has since been found else where but not ‘across’ (eg UK) as they say here.

@dipteristsforum.bsky.social

@jeffollerton.bsky.social Sep 30, 2026, 10:48 AMReposted by @dipteristsforum.bsky.social

Want to conserve #birds, #mammals and other vertebrates? Then don’t forget their #insects. Our new Nature Reviews Biodiversity paper explores the many ways vertebrates depend on insects — for food, shelter, protection and much more. I’ve written about it here: jeffollerton.co.uk/2026/09/30/w...

@davebriceflies.bsky.social Sep 29, 2026, 8:50 AMReposted by @dipteristsforum.bsky.social

Calling ecologists! Diptera backlog? Need ID work done before next season? Planning lots of diptera work next year? We can help! Please contact me for Diptera ID, full species lists and conservation status etc, see

dipteraid.co.uk/projects/

Please share

Conicera tibialis (Phoridae) for interest.

Conicera tibialis (Phoridae) tiny fly with huge pointed antenna

@suillia.bsky.social Sep 26, 2026, 5:03 PMReposted by @dipteristsforum.bsky.social

A male Suillia bicolor lording it over a grove of False Chanterelles...autumn must be here. 🍄 #heleomyzidae #spiny-wingedflies @ynuorg.bsky.social @dipteristsforum.bsky.social

@dipteristsforum.bsky.social Sep 26, 2026, 10:20 AM

@dipteristsforum.bsky.social Sep 24, 2026, 6:31 PM

Fly Research & Conservation Virtual Symposium
21 Oct 2026 | 10:00 - 13:00 | Tickets £1 - £30
www.eventbrite.co.uk/e/1981718540...
Featuring the brilliant minds of:
@flygirlnhm.bsky.social Erica McAlister
@denisewawman.bsky.social Denise Wawman
Ian McGowan
Meghan Barrett
@biologicalrecording.co.uk

@c-forrest-king.bsky.social Sep 23, 2026, 4:20 PMReposted by @dipteristsforum.bsky.social

My first possible Sericomyia silentis (Yellow-barred Peat Fly)? A large hoverfly, definitely stood out.
- Cliffe Castle, Keighley, Yorkshire
- 23/09/26

@lisawilliams30.bsky.social
@dipteristsforum.bsky.social
@hoverflyspotter.bsky.social

@dipteristsforum.bsky.social Sep 23, 2026, 3:11 PM

Diary Date - 2027 Dipterist Forum spring identification workshop will be on... Dolichopodidae!
This hugely popular annual event will run 12th -14th March with tutors Martin Drake (author of the new RES Dolichopodidae Handbook) and Dave Brice (DF training officer).

dipterists.org.uk/events/dipte...

@sussextangerine.bsky.social Sep 22, 2026, 12:49 PMReposted by @dipteristsforum.bsky.social

Twist-winged Parasite Flies, Ectophasia crassipennis, were on the last flowering umbellifers by the River Rother, near Rye, this morning.
#UKwildlife
#Sussexwildlife
#insects
#flies
@dipteristsforum.bsky.social
@sussexwildlife.bsky.social

A striking yellow, orange, black, brown and red insect on white/pink flowers.

A striking yellow, orange, black, brown and red insect on white/pink flowers. Its wings are 'twisted'.

@pilning.bsky.social Sep 20, 2026, 8:07 PMReposted by @dipteristsforum.bsky.social

The inspiring Wern Farm in adjacent Monts with the wildlife groups on Weds produced several of the fine Calliphorid Cynomya mortuorum, Small Copper and fleeting views of Barn Owl amongst others. #diptera @dipteristsforum.bsky.social #mybutterflyyear #ukwildlife

Several sightings of the fine, indeed spectacular, blowfly Cynomya mortuorum, which we don't often find. A big Calliphorid with a yellow face

Rubbish pic of the brief Barn Owl sighting. Always a treat to see

@sussextangerine.bsky.social Sep 20, 2026, 1:53 PMReposted by @dipteristsforum.bsky.social

2/2 Here's a better photo of the Snout Hoverfly, Rhingia campestris, in our Rye garden.
#UKwildlife
#insects
#hoverflies
@sussexwildlife.bsky.social
@dipteristsforum.bsky.social

An orange, black and grey hoverfly, with wings splayed, on a green leaf.

@juliansidney.bsky.social Sep 15, 2026, 5:51 PMReposted by @dipteristsforum.bsky.social

From our #wildspace garden this afternoon on unopened flower head of ivy.

Dioxyna bidentis (Ragwort Picture-winged Fly)

@dipteristsforum.bsky.social @dipterists.bsky.social
Please let me know if my id is wrong.

@suillia.bsky.social Sep 13, 2026, 3:21 PMReposted by @dipteristsforum.bsky.social

Fungi are appearing in woods now, marking the start of Suillia season, as these spiny-winged flies hold territory atop their chosen cap. Suillia notata here at Cali Heath @yorkswildlife.bsky.social reserve today. ID help here... dipterists.org.uk/heleomyzid-s... @dipteristsforum.bsky.social

@dipteristsforum.bsky.social Sep 13, 2026, 11:02 AM

Lots of Diptera 'good stuff' coming up in October from those nice people at @biologicalrecording.co.uk. The days are getting colder and the nights are drawing in so let's get prepped ready for next year!

dipterists.org.uk/events/robbe...

dipterists.org.uk/events/surve...

@flygirlnhm.bsky.social

Older posts