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Help with identifications, field craft and other topics relating to Diptera

Clusiodes ID?

Submitted by ewanparry on

Hi, 

Complete beginner here but I was hoping to get an ID for these flies I found on an old tree stump in a marshy area in York. The best I can do is that they are Clusiodes but beyond that I am a bit stuck. It may be that without specimens that's the best I can do. Following Mike's insect keys I get Clusiodes albimanus due to the three orbital bristles but I'm not entirely convinced. Any ideas welcome!

ID Help - Empis sp.

Hi,

Just been keying out a box of Empids, one is causing a bit of difficulty. I'm using Mike Hackston's key, which is essentially an update of Collin (https://sites.google.com/view/mikes-insect-keys/mikes-insect-keys/keys-for-the-identification-of-british-true-flies-diptera/keys-for-the-identification-of-british-empididae).

Id help - Terellia tussilaginis?

Submitted by Nick Woods on

Hi - I think this is Terellia tussilaginis - but would be grateful if someone could confirm (I am not sure it there are any very similar species).

Insect was on Burdock near the River Stour in Merley, Dorset yesterday.

many thanks

Nick

Ichneumon-like syrphid

Submitted by ASmith on

Hi - Can anyone help me pin down this ichneumon-like syrphid - the nearest thing I have found is Chalcosyrphus but that seems unrecorded from here. 

 It was collected in Kelso, Scottish Borders 21st June, 2025.