Thread subject: Diptera.info :: Helophilus pendulus?

Posted by Rui Andrade on 16-11-2007 18:32
#1

Is this Helophilus pendulus? How can I differenciate Helophilus pendulus from other similar Helophilus?
Thank you

location: Barcelos, Portugal
date: 2006/08/22

img67.imageshack.us/img67/476/helophilus1ca2.jpg

img67.imageshack.us/img67/9526/helophilus2jl2.jpg

Posted by Gerard Pennards on 16-11-2007 22:06
#2

Yes, it is a male of pendulus!
It's face has a black stripe, so no trivittatus! The hind margin of tergite 3 and 4 are yellow, so no affinis. The hind margin fron tergite 2 is black above the small yellow band, so no hybridus.
That leaves us with Helophilus pendulus! :D
Greetings,

Posted by Rui Andrade on 16-11-2007 22:37
#3

Thank you very much, Gerard. Your explanation was very good:).

Posted by Kahis on 17-11-2007 01:20
#4

Also, the 3rd femur is partially yellow and 3rd tibia abour half pale which excludes affinis and hybridus.

Posted by Rui Andrade on 18-11-2007 12:30
#5

Thank you Kahis:)

The more information the better.