Diptera.info :: Identification queries :: Diptera (adults)
 Chironomidae?
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| Noisette |
Posted on 16-03-2016 18:35
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Member Location: Gironde Estuary, France Posts: 6 Joined: 01.02.16 |
Hello, I'm not even sure of the familly but can anyone help to ID this fly found on our local salt marshes in SW France (Gironde estuary) on the 13/03/2016.
Noisette attached the following image:  [155.63Kb] |
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| Tony Irwin |
Posted on 17-03-2016 01:07
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 Member Location: Norwich, England Posts: 7353 Joined: 19.11.04 |
Yes, Chironominae.
Tony ---------- Tony Irwin |
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| John Carr |
Posted on 17-03-2016 01:51
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 Super Administrator Location: Colorado, USA Posts: 10696 Joined: 22.10.10 |
Probably Glyptotendipes or Chironomus. |
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| Noisette |
Posted on 17-03-2016 10:30
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Member Location: Gironde Estuary, France Posts: 6 Joined: 01.02.16 |
Thanks very much for your replies Tony & John.  Are these tiny insects only identifiable for certain by dissection or are there charcteristics not shown by my photo? |
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| John Carr |
Posted on 17-03-2016 12:35
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Super Administrator Location: Colorado, USA Posts: 10696 Joined: 22.10.10 |
ID to species normally requires dissection. A few species are distinctive. Dorsal closeups of male genitalia can often determine genus group. The two genera I mentioned have similar genitalia, but Chironomus has pronotum projecting in the middle and Glyptotendipes has a broad, deep notch. A lateral shot of front of thorax can distinguish them. |
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| Noisette |
Posted on 17-03-2016 16:20
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Member Location: Gironde Estuary, France Posts: 6 Joined: 01.02.16 |
OK I'll give it go, there seem to be a lot around at the moment. Thanks very much for your help John. |
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