Thread subject: Diptera.info :: Big Diptera larva with hairy head, NE HU, Dec

Posted by pwalter on 21-12-2009 23:28
#1
Hi, in a collection of leaf litter and rotten wood with fungi, which I collected in Novembe and keep indoors, I found this 11 mm long larva. Never seen anything like it!

Posted by pwalter on 21-12-2009 23:28
#2
2

Posted by pwalter on 21-12-2009 23:28
#3
3

Posted by pwalter on 21-12-2009 23:29
#4
4

Posted by pwalter on 21-12-2009 23:29
#5
6

Posted by Cranefly on 22-12-2009 06:18
#6
Syrphidae. Xylota?

Posted by pwalter on 22-12-2009 10:46
#7
Thank You, hopefully it can be reared!

Posted by atylotus on 22-12-2009 10:56
#8
Syrphidae indeed. Note the "extra" blackish thorns on the head. In Rotheray (1993) you can use key IV (larva with hooks on the thorax on page 54). In Xylota these hooks are lacking and belongs to a different group. If I use Rotherays key I key out to Chalcosyrphus, when I choose for two hooks. But the dense row of spines on the front resembles that of Callicera, but his genus carries 3-4 hooks, has an extended anal segment and supposed to live in rot-holes. So in my opinion this is not the case. So Chalcosyrphus is my best guess.
Edited by atylotus on 22-12-2009 10:58

Posted by Cranefly on 22-12-2009 12:12
#9
Chalcosyrphus (Xylotomima) nemorum (Fabricius, 1805). Only 2 large hooks present near anterior spiracles, both on one plate, one of them larger, 3 posterior body segments short, transverse, breathing tube short - no more tan 2 times as long as wide,