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 which Asilidae?
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| macharivernanoz |
Posted on 12-03-2006 12:59
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 Member Location: France (60) Posts: 18 Joined: 12.03.06 |
Hi! I want to determinate this Asilidae and I can't do it alone! This Asilidae has been seen in France (100km north from Paris) in may. I photographied it in a way between a field and a wood of Fagus sylvatica and Populus. It was about 10 or 15 mm. Is there anyone to give me a more precise idea?    Thanks (If you answer to me, please use simple english  )Marina Edited by macharivernanoz on 12-03-2006 13:08 |
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| Susan R Walter |
Posted on 13-03-2006 15:04
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 Member Location: Touraine du Sud, central France Posts: 1799 Joined: 14.01.06 |
Marina I am not at all expert in Asilids, but do take an interest in them, so I might be able to help a little. The four obvious features of yours that will be important in identifying him (he looks like a male to me) are: 1. Those beautiful emerald green eyes. 2. The position and amount of yellow on the legs. 3. The size, shape, position and general appearance of the genitalia. 4. The habit of hanging upside down - some genera do this much more than others. If I get time I will look at my references and see if I can help more. Paul - Ce qui est lui qu'on avait indiqu? ? vous - nous devons pratiquer notre fran?ais 
Susan |
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| macharivernanoz |
Posted on 13-03-2006 16:02
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Member Location: France (60) Posts: 18 Joined: 12.03.06 |
Thanks for your answer. I tried to identify my Asilidea with points that you mention but nothing! I looked on differents web site, in my documentation, I tried a question in an other forum but no results! There is a key on this web site : http://www.geller...ilidae.htm I think that subfamilly is Laphriinae or Asilinae but I am not sure. However, I think like you, it is a male. Bye Marina Edited by macharivernanoz on 13-03-2006 16:03 |
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| Xespok |
Posted on 13-03-2006 19:28
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 Member Location: Debrecen, Hungary Posts: 5550 Joined: 02.03.05 |
Looks like an Asilinae robber fly. |
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| macharivernanoz |
Posted on 13-03-2006 19:56
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Member Location: France (60) Posts: 18 Joined: 12.03.06 |
Ok, but according to www.faueur.org there are 69 species of Asilinae in France........ |
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| Xespok |
Posted on 13-03-2006 21:27
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Member Location: Debrecen, Hungary Posts: 5550 Joined: 02.03.05 |
Exactly that is why a specialist is needed for the determination of this species based on these three images. Asilinae is possibly the most difficult subfamily within robber flies with many very similar species. |
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| Dysmachus |
Posted on 15-03-2006 19:01
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 Member Location: Germany Posts: 321 Joined: 15.03.06 |
It seems to be a male of Neomochtherus geniculatus (Meigen, 1820) [Asilidae: Asilinae]. |
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| Mark van Veen |
Posted on 16-03-2006 13:43
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 Member Location: Zeist, Netherlands Posts: 145 Joined: 12.05.04 |
Dysmachus wrote: It seems to be a male of Neomochtherus geniculatus (Meigen, 1820) [Asilidae: Asilinae]. I would think the same. The facial knob is small and placed on the mouth edge, the femora are black and the tibiae red with black apex. That fits on N. geniculatus. Mark |
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| macharivernanoz |
Posted on 16-03-2006 19:56
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Member Location: France (60) Posts: 18 Joined: 12.03.06 |
Thanks for your answer. Mark van Veen wrote: ... the tibiae red with black apex. Mark Red  ! Are you sure, I see them yellow!Marina Edited by macharivernanoz on 16-03-2006 19:57 |
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but don't see the image in the post.