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The Society for the study of flies (Diptera)

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#1 2019-07-09 21:43:03

Andrew18
Registered user
Name: Andrew Matthews
Registered: 2019-07-02
Posts: 5

Acalyptratae ID help

Hi all! I have been struggling to pinpoint the family of this fly, I am leaning towards Ephydridae, could this be correct?

I collected it several hundred metres from the coast in east Iceland. Ocelli visible, costa broken after humeral and also at meeting with R1 I think! Around 4mm in length.

Any help would be massively appreciated!



Last edited by Andrew18 (2019-07-10 14:35:20)

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#2 2019-07-09 23:10:04

Tony Irwin
DF Members
Name: Tony Irwin
From: Norwich
Registered: 2008-03-01
Posts: 818

Re: Acalyptratae ID help

Hi Andrew. I don't recognize it as an ephydrid, but I might well be wrong. It would help to see the detail on the whole fly if the specimen is either completely dried out, or completely submerged when you take the photo. That should get rid of those annoying highlights. The arrangement of those fronto-orbitals is similar to some drosophilids, but I can't get any bells to ring just at the moment.

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#3 2019-07-10 14:43:10

Andrew18
Registered user
Name: Andrew Matthews
Registered: 2019-07-02
Posts: 5

Re: Acalyptratae ID help

Hi Tony! Thanks for taking time to look at this! I have uploaded a few more photos if this helps, sorry for the poor quality though, difficult to focus the camera. Looking at a previous study in the area, Asteiidae pops up as a relatively common family, so also a potential choice?

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#4 2019-07-11 00:18:01

Tony Irwin
DF Members
Name: Tony Irwin
From: Norwich
Registered: 2008-03-01
Posts: 818

Re: Acalyptratae ID help

Thanks for taking the trouble to upload more photos. The picture of the arista with a terminal fork is helpful, though I still can't place this fly. I suspect it's something fairly obvious, but I'm just not making the connection. Hopefully someone else will have a look and will recognize it.

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