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The Society for the study of flies (Diptera)

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#1 2019-07-07 18:28:45

colinleb
DF Members
Name: Colin Le Boutillier
From: Luton, Bedfordshire
Registered: 2008-03-03
Posts: 238

Anthomyiid I think

Spent the usual half day not identifying this specimen; to the extent that I now wonder whether I have got the right Family even.

If Anthomyiidae is correct than hind tibia does have row of posteroventral hairs similar to Delia sp.  However genitalia don't look right for that.  Actually I can't find anything like genitalia in Michael Ackland's picture book at all.

Beds.  25 June 2019.


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#2 2019-07-07 19:14:47

Tony Irwin
DF Members
Name: Tony Irwin
From: Norwich
Registered: 2008-03-01
Posts: 820

Re: Anthomyiid I think

I'd call this Delia coarctata. There is a temptation when using Mike's detailed genitalia illustrations, to think that they have to correspond exactly, but like many morphological features, they are subject to variation, so don't expect them to match precisely. Knowing how much variation to allow for is a matter of experience - no easy shortcuts!

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#3 2019-07-07 20:02:55

colinleb
DF Members
Name: Colin Le Boutillier
From: Luton, Bedfordshire
Registered: 2008-03-03
Posts: 238

Re: Anthomyiid I think

Thanks Tony.  I can see how that would fit.  Not a species I have seen before if I remember rightly.

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#4 2019-07-08 13:02:36

Howard Bentley
Committee
Name: Howard Bentley
Registered: 2008-07-07
Posts: 787

Re: Anthomyiid I think

I think Tony has it. Splendid pictures, Colin.

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#5 2019-07-08 20:44:24

colinleb
DF Members
Name: Colin Le Boutillier
From: Luton, Bedfordshire
Registered: 2008-03-03
Posts: 238

Re: Anthomyiid I think

Thanks Howard.

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