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Pallopteridae
Louis Boumans	#1 Posted on 05-09-2005 18:42
Member Location: NO Oslo Posts: 262 Joined: 09.06.04	This looks like one of them Pallopteridae. Who recognises this fly? Jan Willem? Edited by Louis Boumans on 05-09-2005 18:42


Jan Willem	#2 Posted on 05-09-2005 20:47
Member Location: Waalwijk, The Netherlands Posts: 2126 Joined: 24.07.04	Hi Louis, You are right, it is a female of Palloptera ustulata. When and where did you collect it? Jan Willem


Louis Boumans	#3 Posted on 05-09-2005 21:48
Member Location: NO Oslo Posts: 262 Joined: 09.06.04	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


Jan Willem	#4 Posted on 05-09-2005 23:16
Member Location: Waalwijk, The Netherlands Posts: 2126 Joined: 24.07.04	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.


Louis Boumans	#5 Posted on 06-09-2005 17:10
Member Location: NO Oslo Posts: 262 Joined: 09.06.04	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


Jan Willem	#6 Posted on 06-09-2005 23:26
Member Location: Waalwijk, The Netherlands Posts: 2126 Joined: 24.07.04	Well, have a closer look at the tree. As far as I know there are more generations of this species per year!


Ben Hamers	#7 Posted on 07-09-2005 16:24
Member Location: Heerlen ( Holland ) Posts: 735 Joined: 16.12.04	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 Ben Hamers attached the following image: [67.89Kb] Edited by Ben Hamers on 22-05-2012 18:54


Louis Boumans	#8 Posted on 07-09-2005 23:21
Member Location: NO Oslo Posts: 262 Joined: 09.06.04	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?