Thread subject: Diptera.info :: a 3-4 mm fly ---> Sphaerocerid, Crumomyia

Posted by pat_der2003 on 19-10-2008 12:52
#1

Loire-atlantique, western france, october 2nd.

Edited by pat_der2003 on 20-10-2008 19:46

Posted by Andrius on 19-10-2008 13:03
#2

Hi,

I'd say this is Phoridae, but something still keeps me in uncertainty...

Andrius

Posted by Stephane Lebrun on 19-10-2008 13:48
#3

It's a Sphaeroceridae.

Posted by Gordon on 19-10-2008 15:26
#4

Stephane, I am not doubting you, and I wouldn't have thought it a Phorid, but how can you be so sure. I can see the long arista, but the 1st tarsal segment of leg three does not look swollen and the wing venation is not really discernable, at least to me.

It all much clearer under the microscope where both Phorids and Sphaerocerids (to a point) are among the easier subjects.

Posted by Stephane Lebrun on 19-10-2008 18:00
#5

Hi Gordon,
hind metatarsus seems swollen to me, but it not the best angle of view to see this., I agree.

Posted by pat_der2003 on 19-10-2008 18:39
#6

i got this one dorso-back view showing the wings ... if it might help ?

Posted by jorgemotalmeida on 19-10-2008 20:12
#7

this is not phorid, clearly. Stéphane is right. This is a typical Sphaerocerid fly.

Posted by Paul Beuk on 20-10-2008 08:48
#8

Crumomyia, I think.

Posted by pat_der2003 on 20-10-2008 19:45
#9

Thank you very much to all of you !! :)