Thread subject: Diptera.info :: Anthomyiidae maybe Pegomya bicolor?

Posted by Erik Nielsen on 20-03-2008 14:36
#1

Picture taken yesterday, Jutland Denmark. About 6-7 mm. long.

Best Regards Erik

Posted by Michael Ackland on 20-03-2008 17:31
#2

Almost certain you are right, Eric. Scutal pattern is the same. Other characters needed to be 100% bicolor are: entirely yellow palpi, 3 equally long dorsal preapical setae on hind tibia, as in the attached photos

Posted by Michael Ackland on 20-03-2008 17:32
#3

another photo

Posted by Michael Ackland on 20-03-2008 17:33
#4

another photo

Posted by Michael Ackland on 20-03-2008 17:35
#5

another photo of sternite V showing rounded processes without setae and rather shining, widely separated

These photos were taken through the eye-piece of a binocular microscope, and hand held; surprising they are viewable!

Posted by Erik Nielsen on 22-03-2008 14:10
#6

Thank you very much Michael for your work and help. Impressive pictures.
I met the fly again yesterday, and got another picture.
Maybe that can help to id the fly.

Best Regards Erik

Posted by Erik Nielsen on 22-03-2008 14:13
#7

The picture was missing somehow.

Posted by Erik Nielsen on 30-03-2008 20:13
#8

Just to reactivate this thread.

As the palpi does not seem to be yellow, i presume this it not P. bicolor, or?

Best Regards Erik.

Posted by Michael Ackland on 31-03-2008 17:25
#9

I don't think you can see the palpi , only the proboscis? I have seen a few bicolor with darkened palpi, colour is not always reliable I am afraid. The only way to positively identify anthomyiids is to look at them under the microscope,or dissect the male genitalia. Pegomya is a very large genus, especially in Northern Fennoscandinavia.

Posted by Erik Nielsen on 31-03-2008 19:03
#10

Thank you Michael,

I am very happy with Pegomya sp. , but i had to try.

Best regards Erik.