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The Society for the study of flies (Diptera)

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#1 2019-07-30 19:31:46

Gateside
DF Members
Name: Nigel Gilligan
From: Cumbria
Registered: 2011-08-26
Posts: 1045

Is this a Helina species?

One of several smallish flies, all apparently feeding on something so far unidentified on a Hart's Tongue  fern.
The colour of the abdomen and the spots made me think of Helina reversio, but (for a start) it looks like the spines on the front tiba are wrong for that. I can't see anything else that looks promising.

Am I looking in the wrong area?
Thanks.
Nigel G.


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#2 2019-07-30 22:14:14

Tony Irwin
DF Members
Name: Tony Irwin
From: Norwich
Registered: 2008-03-01
Posts: 830

Re: Is this a Helina species?

Try Coenosiinae (note the isoceles triangle of sternopleural [=katepisternal] bristles) - specifically Coenosia tigrina

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#3 2019-07-30 23:12:39

Gateside
DF Members
Name: Nigel Gilligan
From: Cumbria
Registered: 2011-08-26
Posts: 1045

Re: Is this a Helina species?

Thanks Tony (once again!).

I thought I'd seen this fly before, but couldn't remember where.
I now remember - it was when there was a survey of an unfrequented SSSI, which would become inaccessible when a certain nuclear power station was constructed. The plans were subsequently never progressed anyway.

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