Thread subject: Diptera.info :: Trichocera hiemalis?, northern Norway
Posted by Geir79 on 12-04-2012 11:57
#1
I've used Alan Stubbs key to Trichoceridae, could this be T. hiemalis? Problem is that I don't have good enough equipment to get a good view of the genitalia structures... Can it be confirmed still or is it a species not mentioned in the key maybe??
Found on snow 10. april 2012 in Bodø, northern Norway (coastal location).
Size is 5,4 mm (wing length 6,8 mm).
On the ventral side of sternite 9 it seems to have between 6 and 8 bristles... (but difficult to see clearly for me).
Posted by Geir79 on 12-04-2012 11:58
#2
Second:
Posted by Geir79 on 12-04-2012 11:58
#3
Third:
Posted by Geir79 on 12-04-2012 11:59
#4
Fourth (dorsal view of last segments):
Posted by Geir79 on 12-04-2012 12:00
#5
Fifth (ventral side of last segments):
Posted by clovis on 07-02-2013 17:41
#6
It could also be borealis (never met) witch also has those tooth.
Posted by Andrius on 14-02-2013 22:36
#7
From what is visible, I'd say this is
hiemalis - those teeth on gonostyles usually are smaller in
borealis and gonocoxal bridge is not merged in
borealis.
Posted by Geir79 on 18-02-2013 13:42
#8
Thank you! I have just noted Trichocera sp., I did not keep the specimen.