Diptera.info :: Identification queries :: Diptera (adults)
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 Anthomyiidae it is
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| pat_der2003 |
Posted on 04-01-2009 17:28
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Member Location: Paris area, France Posts: 1731 Joined: 20.08.07 |
loire-atlantique, western france, in november 2007 1st view pat_der2003 attached the following image:  [119.16Kb] Edited by pat_der2003 on 05-01-2009 19:29 |
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| pat_der2003 |
Posted on 04-01-2009 17:28
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Member Location: Paris area, France Posts: 1731 Joined: 20.08.07 |
second view
pat_der2003 attached the following image:  [94.92Kb] |
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| Michael Ackland |
Posted on 05-01-2009 11:29
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Member Location: Dorset UK Posts: 680 Joined: 23.02.08 |
It is an anthomyiid, but no diagnostic characters visible. If the scutellum has setulae on disc, and calypters are large it is probably a Hydrophoria, if the scutellum is mainly bare on disc, and the calypters are smaller, it is a Hylemya. Both these genera have plumose arista, but this is unfortunately also not visible. |
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| pat_der2003 |
Posted on 05-01-2009 19:28
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Member Location: Paris area, France Posts: 1731 Joined: 20.08.07 |
many Thanks Michael !! unfortunately the scutelum and calypters are out of focus ... the only thing showable i have is the arista which seem to be plumose to me ... pat_der2003 attached the following image:  [21.96Kb] |
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| Nikita Vikhrev |
Posted on 05-01-2009 22:10
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 Member Location: Moscow, Russia Posts: 9225 Joined: 24.05.05 |
Michael, it seems to me that Hydrophoria is spring-summer genus, in November Hylemya is much more probable, doesn't it? Nikita Nikita Vikhrev - Zool Museum of Moscow University |
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| Michael Ackland |
Posted on 06-01-2009 17:18
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Member Location: Dorset UK Posts: 680 Joined: 23.02.08 |
There may be something in what you say, Nikita. I have extracted from my database the earliest and latest dates for Hydrophoria lancifer, and Hylemya vagans. lancifer 17 April to 25 Aug (n=14); vagans 10 April to 10 Oct (n=24 record). This is based on very few records! The photo just looks more like lancifer to me, darker with darker stripes on scutum, also legs darker. But don't take that as a definite id By the way, I hope you are putting some Thai anthos in alcohol, as there are hardly any records of that family from the area; there should be more than 20 species there. Vodka is OK for a short time! |
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| Nikita Vikhrev |
Posted on 06-01-2009 18:37
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Member Location: Moscow, Russia Posts: 9225 Joined: 24.05.05 |
Dear Michael, Thai Anthomyiidae aren't a matter of Vodka, but a matter of locality - I was in Central Thailand and this year no Anthomyiid at all, last years A.illocata only and uncommon. I suppose we need North-West of Thailand with high mountains to collect more Anthomyiid. Nikita Nikita Vikhrev - Zool Museum of Moscow University |
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but don't see the image in the post.
