Diptera.info :: Identification queries :: Diptera (adults)
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 Muscidae / Anthomyiidae
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| Chris Lewis |
Posted on 21-03-2007 22:23
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 Member Location: Essex, England Posts: 85 Joined: 03.08.06 |
Interesting discussion between Xespok and Nikita. Here's one I've been struggling with. Found in my moth trap, Foulness, Essex. 18/3/07 8-9mm. V6 does not appear to reach the margin No hairs under scutellum And no crossed bristles on frons So I think it shouldn't be Anthomyiidae BUT - if it is Muscidae the straight V4 rules out Muscinae and the pattern of sternopleural bristles - 4 on the lateral surface and another 4 on the ventral surface - should rule out Phaoninae, Mydeinae and Coenosinae So what is it? 2 pictrues - I have more and the specimen if anyone wants more info. Chris Lewis attached the following image:  [150.53Kb] |
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| Chris Lewis |
Posted on 21-03-2007 22:24
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Member Location: Essex, England Posts: 85 Joined: 03.08.06 |
2nd picture
Chris Lewis attached the following image:  [164.1Kb] |
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| Nikita Vikhrev |
Posted on 21-03-2007 23:15
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 Member Location: Moscow, Russia Posts: 9338 Joined: 24.05.05 |
Chris, I think it is Phaonia fuscata. I can see on your photo 3 sternpl bristle, as it has to be. Ph. fuscata has 3 post sut dc, yours - 4, but in my collection there are specimens with 3/4 post sut dc. Nikita Nikita Vikhrev - Zool Museum of Moscow University |
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| Chris Lewis |
Posted on 23-03-2007 01:25
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Member Location: Essex, England Posts: 85 Joined: 03.08.06 |
Thanks Nikita Here's a close up of the sternopleuron I think it shows 4 sternopleurals Am I right? Does that rule out Phaonia? (despite it looking good in other respects) Chris Lewis attached the following image:  [189.56Kb] |
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| Nikita Vikhrev |
Posted on 23-03-2007 22:59
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Member Location: Moscow, Russia Posts: 9338 Joined: 24.05.05 |
Well, Chris, I don't know... 1. In Gregor and K key Phaonia keyed both by couplet: 3 stpl on equal distance and 1 to 4 stpl. 2. In species discriptions almost nothing about stpl at all which may mean that stpl aren't so important in Phaonia ID. 3. My Ph. fuscata with 3 stpl 4. Still fly looks for me as Ph. fuscata rather common spring species. Let's wait for somebody else comment... Nikita Nikita Vikhrev - Zool Museum of Moscow University |
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| Chris Lewis |
Posted on 24-03-2007 00:03
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Member Location: Essex, England Posts: 85 Joined: 03.08.06 |
Thanks Nikita. I am most grateful for your help. |
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