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 Another Heleomyzid at Sugar Maple Sap
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| Stephen |
Posted on 11-11-2006 15:28
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 Member Location: West Virginia USA Posts: 1322 Joined: 12.04.05 |
There is still lots of activity at the Sugar Maple tree, as unusual warm weather continues here. This fly was feeding on the sweet sap. While it looks very similar to the one I posted a few days ago, the wing venation does seem different, and also the wing has some dark spots, for example on the cross veins, and elsewhere. Photographed yesterday, woodlands, West Virginia USA. Stephen attached the following image:  [92.37Kb] --Stephen Stephen Cresswell www.americaninsects.net |
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| Stephen |
Posted on 11-11-2006 15:30
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Member Location: West Virginia USA Posts: 1322 Joined: 12.04.05 |
Here's a view of the wing.
Stephen attached the following image:  [120.99Kb] Edited by Stephen on 11-11-2006 15:38 --Stephen Stephen Cresswell www.americaninsects.net |
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| Stephen |
Posted on 11-11-2006 15:32
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Member Location: West Virginia USA Posts: 1322 Joined: 12.04.05 |
Dorsal view of the front.
Stephen attached the following image:  [118.67Kb] --Stephen Stephen Cresswell www.americaninsects.net |
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| Stephen |
Posted on 11-11-2006 15:34
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Member Location: West Virginia USA Posts: 1322 Joined: 12.04.05 |
The last one, I promise! A look at the "face."
Stephen attached the following image:  [97.81Kb] --Stephen Stephen Cresswell www.americaninsects.net |
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| Nikita Vikhrev |
Posted on 11-11-2006 15:42
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 Member Location: Moscow, Russia Posts: 9223 Joined: 24.05.05 |
I think this one is Suillia. Nikita Nikita Vikhrev - Zool Museum of Moscow University |
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| Nikita Vikhrev |
Posted on 11-11-2006 15:47
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Member Location: Moscow, Russia Posts: 9223 Joined: 24.05.05 |
P.S. 1. Suillia, because 1+4 dc; 1 or; 2. To your question about winter in Virginia - Heleomyzidae is winter family, do not try to find it in summer (or almost)! Nikita Vikhrev - Zool Museum of Moscow University |
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| Stephen |
Posted on 11-11-2006 16:09
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Member Location: West Virginia USA Posts: 1322 Joined: 12.04.05 |
Ha, interesting about the wintertime habits of Heleomyzids! I went back to my records and found that the first Heleomyzid I ever photographed was in March (it's still cold here in March) and the others were in September, October, and November. You're right, I have no summer photos of them! On point one, talk to me like you would talk to a seven-year-old child. I suspect dc means "discal cross vein," and I know where that is, but what does 1+4 mean? I'm not sure what "1 or" means, maybe it means one pair of orbital bristles? Thanks for your help, Nikita! Edited by Stephen on 11-11-2006 19:09 --Stephen Stephen Cresswell www.americaninsects.net |
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| Nikita Vikhrev |
Posted on 11-11-2006 16:16
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Member Location: Moscow, Russia Posts: 9223 Joined: 24.05.05 |
I'm not sure what "1 or" means, maybe it means one pair of orbital bristles? Yes. dc - dorsocentral setas (you can find illustration in Google search). 1+4 = 1 pre + 4 postsutural dc setas Nikita Nikita Vikhrev - Zool Museum of Moscow University |
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| Kahis |
Posted on 11-11-2006 18:41
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 Member Location: Helsinki, Finland Posts: 1999 Joined: 02.09.04 |
Stephen, I hope you don't mind my heathen graffiti on your original photograph The suture is not well visible in the photo. It is developed only on the sides of thorax in these flies. Edited by Kahis on 11-11-2006 18:44 Kahis |
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| Stephen |
Posted on 11-11-2006 19:05
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Member Location: West Virginia USA Posts: 1322 Joined: 12.04.05 |
Nikita, Kahis, Thanks very much for clarifying! Kahis, feel free to make grafitti on my photos at any time. The marked version was very helpful. --Stephen Stephen Cresswell www.americaninsects.net |
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| Nikita Vikhrev |
Posted on 11-11-2006 19:54
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Member Location: Moscow, Russia Posts: 9223 Joined: 24.05.05 |
Couldn't stop drawing on your photo
Nikita Vikhrev attached the following image:  [132.56Kb] Nikita Vikhrev - Zool Museum of Moscow University |
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| Andrzej |
Posted on 16-11-2006 17:07
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Member Location: Poland Posts: 2339 Joined: 05.01.06 |
Hi Stephen,  Finally ID: Suillia quinquepunctata (Say) Regards, Andrzej |
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| Stephen |
Posted on 17-11-2006 00:34
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Member Location: West Virginia USA Posts: 1322 Joined: 12.04.05 |
Wow, ID to species, thanks, Andrzej. Dziekuje!
--Stephen Stephen Cresswell www.americaninsects.net |
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