Posted by Stephen R on 14-11-2010 18:41
#1
Clitheroe UK, 16 May 2009.
I found this in my Phaonia bin. I would call it
P. subventa except that it has 3 posterior setae on the mid tibia, which could indicate
P. bitincta. On the other hand, as far as I can guess from the shaky photo, the arista looks short-haired, and I can't see any yellow at the antennal base. Also the dark mid-line on the abdomen looks very like
P. subventa. Is this the (rarely 3) case mentioned in the key?
Edited by Stephen R on 16-11-2010 13:31
Posted by Stephane Lebrun on 15-11-2010 21:44
#2
Hennig says in his key :
t 2, mostly with 2, rarely with 3 bristles on the backside
.
The arista is crucial for ID in this case.
Posted by Stephen R on 16-11-2010 13:30
#3
Thanks Stephane. I'll keep looking for
P. bitincta, but I think we probably don't have it on my local patch.
Stephen.