Thread subject: Diptera.info :: Dolichopodidae; Rhaphium sp?

Posted by Roger Thomason on 21-06-2013 10:58
#1

Found at Burn of Valayre a couple of days ago. Looks like a Rhaphium, the only one recorded previously here is Rhaphium brevicorne [Curtis]. Any possibility of knowing if this is it from a photograph, or does it need its genitalia inspected? :S

Posted by Roger Thomason on 21-06-2013 10:58
#2

2

Posted by Igor Grichanov on 21-06-2013 12:27
#3

Rhaphium brevicorne: Postpedicel 4‒5 times longer than high at base; stylus more than half length of postpedicel, sometimes as long as postpedicel.
It need its genitalia inspected.

Posted by Stefan Naglis on 21-06-2013 20:08
#4

Dear Igor, on the pictures above the arista (stylus) seems to be distinctly shorter than half of the first flagellomere (postpedicel).
Stefan