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Diptera.info :: Identification queries :: Diptera (adults)
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Feeding at Watery Sap
Stephen
#1 Print Post
Posted on 21-09-2006 23:00
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Location: West Virginia USA
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These two flies were feeding on the watery sap on top of a tree stump in early Spring.

Sames species? I think so. The bristle patterns seem the same. One has a pale scutellum while the other doesn't. The wing venation looks different, but maybe that is because the flash illuminated both wings' veins on one picture, but only the top wing veins on the other picture.

They were both the exact same size, 5.2 mm.

Anyhow, I can't seem to figure out which family.
Stephen attached the following image:


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--Stephen

Stephen Cresswell
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Stephen
#2 Print Post
Posted on 21-09-2006 23:02
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Second fly
Stephen attached the following image:


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Stephen Cresswell
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Paul Beuk
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Posted on 22-09-2006 06:39
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These are drosophilids and I think that they are the same species but that the top one is a teneral.
Paul

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23.06.25 18:10
If you have some spare money, there is a copy (together with keys to pupae and larvae) for sale by Hermann L. Strack, Loguivy Plougras, France

23.06.25 11:18
Appreciate it, Tony Irwin! I got the hint to use the key next to Langton and Pinder key for females of Chironomidae. So no specific queries, except the keys... I will keep this on my list and hope th

19.06.25 15:33
I have the hard copy book, if you have any specific queries, but I'm not scanning the 500+ pages!

02.06.25 18:26
Anyone has "Chironomidae of the Holarctic region. Keys and diagnoses. Part 3. Adult Males Entomologica Scandinavica Supplement 34"? smolwaarneming@gma
il.com

28.05.25 20:57
I have Russian Coenosia. nikita6510@ya.ru

28.05.25 12:25
Is someone able to share with me "A key to the Russian species of the genus Coenosia"?

08.05.25 18:22
I have

03.05.25 08:35
Does someone has a scan of Nartshuk E.P. 2003. Key to families of Diptera (Insecta) of the fauna of Russian and adjacent countries. Proceedings of the Zoological Institute Vol. 294: 1-252 for me?

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