Thread subject: Diptera.info :: which Asilidae?
Posted by macharivernanoz on 12-03-2006 12:59
#1
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
Posted by Susan R Walter on 13-03-2006 15:04
#2
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 :p
Posted by macharivernanoz on 13-03-2006 16:02
#3
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
Posted by Xespok on 13-03-2006 19:28
#4
Looks like an Asilinae robber fly.
Posted by macharivernanoz on 13-03-2006 19:56
#5
Ok, but according to
www.faueur.org there are 69 species of Asilinae in France........
Posted by Xespok on 13-03-2006 21:27
#6
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.
Posted by Dysmachus on 15-03-2006 19:01
#7
It seems to be a male of Neomochtherus geniculatus (Meigen, 1820) [Asilidae: Asilinae].
Posted by Mark van Veen on 16-03-2006 13:43
#8
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
Posted by macharivernanoz on 16-03-2006 19:56
#9
Thanks for your answer.
Mark van Veen wrote:
... the tibiae red with black apex.
Mark
Red :o ! Are you sure, I see them yellow!
Marina
Edited by macharivernanoz on 16-03-2006 19:57
