Thread subject: Diptera.info :: Crumomyia pedestris? (Sphaeroceridae) on snow

Posted by Andrius on 15-01-2011 18:10
#1

Hello everyone,
I went for a walk today thinking of collecting some insects or spiders on snow and got really lucky. I've found three wingless flies what I think could be Crumomyia pedestris, Lauxaniidae - judging from the images in the gallery. Flies are about 4 mm long, caught on snow in Vilnius, Lithuania, around +0°C.
Sorry for the quality of the images - it's hard to make a photo of anything on snow...

Edited by Andrius on 15-01-2011 18:10

Posted by Jason G on 15-01-2011 19:08
#2

Hi Andrius,

Did you collect any of these? Good shots by the way, the images show the icy texture well.

Edited by Jason G on 15-01-2011 19:09

Posted by Andrius on 15-01-2011 21:17
#3

Yes, Jason, I collected all the three specimens I've found and they are still walking around in the jar :) They will eventually end up in our museum collection, I guess.

Posted by Paul Beuk on 15-01-2011 21:41
#4

If you can spare one (temporarily) I can confirm ID. ;)

Posted by Andrius on 21-01-2011 15:47
#5

Paul,
I have checked the specimens with Krivosheina's 1970 key (Opr.nas.evrop.ch.SSSR) and only Crumomyia pedestris has this kind of male genitalia as I've attached in the photo. Are there any other similar short-wing species to consider? Thank you!