Diptera.info

Thread subject: Diptera.info :: Pallopteridae

Posted by Louis Boumans on 05-09-2005 18:42

This looks like one of them Pallopteridae. Who recognises this fly? Jan Willem?
www.diptera.info/forim/5-0688-1.jpg

Edited by Louis Boumans on 05-09-2005 18:42

Posted by Jan Willem on 05-09-2005 20:47

Hi Louis,

You are right, it is a female of Palloptera ustulata. When and where did you collect it?

Jan Willem

Posted by Louis Boumans on 05-09-2005 21:48

You're more efficient than a key!
This one's also from my kitchen window in Soest (AC 147-466) on 4ix05.
Do you know in what substrate the larva lives? Cheers, Louis

Posted by Jan Willem on 05-09-2005 23:16

Hi Louis,

The larvae live under the bark of trees (Norway spruce, birch, maple, poplar and horn beam). The feed on fungi, but may also become carnivorous, attacking larvae of other Diptera (for example Stegana (Drosophilidae))and bark beetles.

Posted by Louis Boumans on 06-09-2005 17:10

thanks again!
Today i found a second female, same loc. I have a decaying birch tree closeby.

Edited by Louis Boumans on 06-09-2005 17:12

Posted by Jan Willem on 06-09-2005 23:26

Well, have a closer look at the tree. As far as I know there are more generations of this species per year!

Posted by Ben Hamers on 07-09-2005 16:24

Hello Jan Willem and Louis,

Is this P. ustulata too ? Last week I saw several of them sitting underneath the leaves of a tree at an open place in a wood near Heerlen.

Ben

Edited by Ben Hamers on 22-05-2012 18:54

Posted by Louis Boumans on 07-09-2005 23:21

Well it looks similar enough to me, but JW is the expert, as you may have guessed! My specimen has 2 rows of long bristles on femur I, which I can't see in your picture. Maybe sexual dimorphism?