Thread subject: Diptera.info :: Parhelophilus, but which one? (3pics)

Posted by Rupert Huber on 15-08-2011 08:30
#1
Hello to all!
Can anyone tell me, which Parhelophilus this is? Size not more than 1cm. And how can I fix the sex in this genus? The guys don't seem to be holoptic there, as in most of the other syrphid genera...

6.8.2011, Czech Republic, near Prachatice

Posted by Rupert Huber on 15-08-2011 08:31
#2
2nd pic

Posted by Rupert Huber on 15-08-2011 08:31
#3
3rd pic

Posted by Stephane Lebrun on 15-08-2011 10:58
#4
Not Parhelophilus, Helophilus pendulus (female).

Posted by Rupert Huber on 15-08-2011 11:13
#5
Thanks a lot, Stephane! I'm surprised. So it's by far the darkest and smallest one of this kind that I've ever seen...

Posted by Stephane Lebrun on 15-08-2011 11:37
#6
Parhelophilus have yellow antennae and no lustrous facial stripe.

Posted by Rupert Huber on 15-08-2011 13:25
#7
Thanks again! I'm confident now that I know next time Smile