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 Doli on Pacific Ocean Beach?
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| Stephen |
Posted on 18-05-2007 15:32
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 Member Location: West Virginia USA Posts: 1322 Joined: 12.04.05 |
I have posted images of two flies below, marked Fly #1 and Fly #2. Although photographed at two different beaches, at first I thought they were the same species. Then I noticed that their antennae seemed different, unless that is a misleading trick of the camera angle. With long legs and metallic green color and wooly eyes I am thinking Doli, is that right? Any ID help will be appreciated. Ocean beach, Oregon USA, 13 May 2007. I did not record the size of Fly #1, but Fly #2 measured about 8 mm to the back of the wings. Stephen attached the following image:  [125.59Kb] --Stephen Stephen Cresswell www.americaninsects.net |
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| Stephen |
Posted on 18-05-2007 15:34
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Member Location: West Virginia USA Posts: 1322 Joined: 12.04.05 |
A closer look at Fly #1.
Stephen attached the following image:  [68.21Kb] --Stephen Stephen Cresswell www.americaninsects.net |
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| Stephen |
Posted on 18-05-2007 15:36
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Member Location: West Virginia USA Posts: 1322 Joined: 12.04.05 |
Here's fly #2, at a different beach.
Stephen attached the following image:  [145.15Kb] --Stephen Stephen Cresswell www.americaninsects.net |
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| Stephen |
Posted on 18-05-2007 15:38
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Member Location: West Virginia USA Posts: 1322 Joined: 12.04.05 |
Here's a closer look at #2, a little blurred. Same family, different genus, maybe? The antennae look different, unless that is a trick of the camera angle.
Stephen attached the following image:  [68.44Kb] --Stephen Stephen Cresswell www.americaninsects.net |
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| Kahis |
Posted on 18-05-2007 16:18
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 Member Location: Helsinki, Finland Posts: 1999 Joined: 02.09.04 |
#1 of clearly a Doli. #2 is not 
Kahis |
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| Nikita Vikhrev |
Posted on 18-05-2007 18:27
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 Member Location: Moscow, Russia Posts: 9425 Joined: 24.05.05 |
N2 looks a Calyptrate fly, with so small eyes, may be some Nearctic Scathophagidae?
Nikita Vikhrev - Zool Museum of Moscow University |
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| Igor Grichanov |
Posted on 19-05-2007 09:57
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 Member Location: St.Petersburg, Russia Posts: 1751 Joined: 17.08.06 |
Fly #1 needs lateral and anterior view. If it is a female, then it may belong to one of several marine shore genera of the subfamily Hydrophorinae (e.g., Conchopus, Hypocharassus etc.)
Igor Grichanov |
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| Stephen |
Posted on 19-05-2007 10:52
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Member Location: West Virginia USA Posts: 1322 Joined: 12.04.05 |
Kahis, Nikita, Igor, Thanks very much for your help with these two flies. I regret that I have Fly #1 from only one other angle, a sort of dorso-lateral shot that I am posting now. I don't know if this will show anything useful. Stephen attached the following image:  [127.28Kb] --Stephen Stephen Cresswell www.americaninsects.net |
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