Diptera.info

Posted by Stephane Lebrun on 23-06-2007 22:22

Hello,
I need your opinion for this fly.
At first glance, it looks like Thricops diaphanus, but I'm not convinced at all, odd chaetotaxy and there is a black midstripe on anterior part of thorax.
So I wondered if it couldn't be Achantiptera rohrelliformis. That would be too much !
I don't know and I have never seen this fly, and I dream of seeing it.
Or, last possibilty, it's only an Anthomyid ?

Thanks for your help.

Location : near Paris, France.
Date : June, 13 2007
Size : ~10 mm

Edit: title changed.

Only one photograph :

Edited by Stephane Lebrun on 24-06-2007 10:24

Posted by Nikita Vikhrev on 24-06-2007 08:49

I wish to be of any help, but alas, I've never seen Achantiptera too...
Thricops diaphanus has 4 post dc - your fly 3, Thricops diaphanus female has much broader frontal vita, male - narrower.
Some Pegomya? Dieu sait! But jizz, my test, is not Anthomyiid at all.
Nikita

Posted by Stephane Lebrun on 24-06-2007 10:23

Hi Nikita,
you're helping me, because you confirm my reasoning.
Unfortunately and of course, we can't see whether R1 is setulose on distal part or not from this photo. The photo's not mine, and the owner did'nt collect the fly.
I'm going to edit the title to attract Kahis attention. ;)

Thanks again Nikita. :)

St?phane.

Posted by Tony Irwin on 24-06-2007 11:48

Well, it matches the description of a female Achanthiptera in Gregor et al - but it is worth pointing out the difficulties identifying muscids from photos. In this specimen the right mid tibia clearly has two posterodorsal bristles, but they are missing from the left side.

Posted by Stephane Lebrun on 24-06-2007 19:42

The frons looks quite like the fig. 10b of this book. If it is not an Anthomyidae, it has a good chance to be that species.
I hope the person will find it again, very interesting.
Thanks for your help.

Greetings.

Posted by Kahis on 24-06-2007 20:17

Stephane Lebrun wrote:
I'm going to edit the title to attract Kahis attention. ;)

Well done, here I am ;)

And I bring good news: after comparison with collected specimens, I can declare that this fly is indeed a female of A. rohrelliformis.

The central black stripe on thorax with the sorrounding pale pollinosity should work as a field character!

Posted by Stephane Lebrun on 24-06-2007 20:36

Well, I'm very happy to heard this ! :):)
Many thanks Jere.:)
Would you want me to put the picture in the gallery ?