Diptera.info :: Identification queries :: Diptera (adults)
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 Dolichopodidae
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| Susan R Walter |
Posted on 10-02-2007 15:48
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 Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
I assume this is Dolichopodidae. I am sure the very strong 'mark of Zorro' wing venation should tell me something, but I am not sure what. There is some pennation on the hind tibiae and the antennae seem quite distinctive. Am I right in thinking it is male? 19 August 2006, east London cemetery park. 5mm. Susan R Walter attached the following image:  [103.06Kb] Susan |
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| Susan R Walter |
Posted on 10-02-2007 15:50
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Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
Another view.
Susan R Walter attached the following image:  [179.76Kb] Susan |
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| Nikita Vikhrev |
Posted on 10-02-2007 16:04
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 Member Location: Moscow, Russia Posts: 9338 Joined: 24.05.05 |
Hi Susan. With genitalia on first image it isn't male, but MALE! I think Dolichopus griseipennis. Nikita Nikita Vikhrev - Zool Museum of Moscow University |
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| Susan R Walter |
Posted on 10-02-2007 16:28
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Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
For such a little beast, he is rather impressive, isn't he?  What are the key characters for this species please? Susan |
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| Nikita Vikhrev |
Posted on 10-02-2007 23:59
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Member Location: Moscow, Russia Posts: 9338 Joined: 24.05.05 |
I think = I'm not sure, so let's wait for expert. But as you wrote vein M with 'mark of Zorro' exclude a lot of candidates. Nikita Nikita Vikhrev - Zool Museum of Moscow University |
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| Igor Grichanov |
Posted on 11-02-2007 11:05
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 Member Location: St.Petersburg, Russia Posts: 1723 Joined: 17.08.06 |
Hi, Susan and Nikita. Nikita is most probably right. Wing, legs and antenna look like those in Dolichopus griseipennis Stannius, 1831: Isis (Oken) 1831: 49 Lower postocular cilia should be pale; Hind femur should bear fringe of long setiform ventral hairs. Regards, Edited by Igor Grichanov on 11-02-2007 16:29 Igor Grichanov |
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| Igor Grichanov |
Posted on 11-02-2007 16:29
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Member Location: St.Petersburg, Russia Posts: 1723 Joined: 17.08.06 |
Sorry. Dolichopus griseipennis Stannius, 1831: Isis (Oken) 1831: 49 Igor Grichanov |
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| Susan R Walter |
Posted on 24-02-2007 17:50
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Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
Many thanks Igor and Nikita. I have checked and the post ocular hairs are pale, and there is a row of long fine stiff hairs ventrally on the hind femora - they are a bit irregular and not very dense, but I guess they qualify as a fringe. They are surprisingly difficult to see, and I hadn't noticed them until you sent me looking for them, so thank you for that. Susan |
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