Diptera.info :: Identification queries :: Diptera (adults)
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 Sepsidae
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| Stephen |
Posted on 18-03-2007 22:15
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 Member Location: West Virginia USA Posts: 1322 Joined: 12.04.05 |
I photographed this fly at Sugar Maple sap in the woods, but then photographed another one half a kilometer away in an open area. Sepsidae? Can anyone provide further information on this fly? West Virginia USA, 14 March 2007. Size: 3.5 mm. Stephen attached the following image:  [102.8Kb] --Stephen Stephen Cresswell www.americaninsects.net |
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| Nikita Vikhrev |
Posted on 18-03-2007 22:22
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 Member Location: Moscow, Russia Posts: 9338 Joined: 24.05.05 |
I think that female of Sepsis sp. is maximum out of this image.
Nikita Vikhrev - Zool Museum of Moscow University |
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| Stephen |
Posted on 18-03-2007 22:23
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Member Location: West Virginia USA Posts: 1322 Joined: 12.04.05 |
Another view, different individual.
Stephen attached the following image:  [117.81Kb] --Stephen Stephen Cresswell www.americaninsects.net |
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| Nikita Vikhrev |
Posted on 18-03-2007 22:30
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Member Location: Moscow, Russia Posts: 9338 Joined: 24.05.05 |
Much more usefull image for ID. But I have neither key nor knowledge for Nearctic Sepsis... Nikita Vikhrev - Zool Museum of Moscow University |
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| Dmitry Gavryushin |
Posted on 19-03-2007 08:17
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 Member Location: Moscow region, Russia Posts: 3308 Joined: 17.10.05 |
Ozerov A.L. 2000. A revision of the Nearctic species of the genus Sepsis Fallen, 1810 (Diptera, Sepsidae) // Russian Entomological Journal. Vol. 9, No. 2, P. 161?176 |
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| Stephen |
Posted on 19-03-2007 10:26
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Member Location: West Virginia USA Posts: 1322 Joined: 12.04.05 |
A female of the genus Sepsis? By the way, how do we determine that this is a female from the photo? Thanks, Nikita and Black for replying. --Stephen Stephen Cresswell www.americaninsects.net |
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| Nikita Vikhrev |
Posted on 19-03-2007 14:49
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Member Location: Moscow, Russia Posts: 9338 Joined: 24.05.05 |
First image with fatty abdomen looks female, the second one looks male - abdomen thiner and it seems that there are weapon (spines, strong setas) on ventral surface of f1. Nikita Nikita Vikhrev - Zool Museum of Moscow University |
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| Andrey Ozerov |
Posted on 21-03-2007 10:51
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Member Location: Posts: 63 Joined: 05.06.06 |
I think it is Sepsis neocynipsea Melander et Spuler, 1917 |
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