Thread subject: Diptera.info :: Phasia barbifrons
Posted by Christine Devillers on 03-02-2008 19:53
#1
Is it Phasia barbifrons female ?
Belgium, 02-09-2006, size: 3-4 mm, on Sedum
Edited by Christine Devillers on 11-02-2009 16:09
Posted by Zeegers on 03-02-2008 22:07
#2
It's Phasia barbifrons indeed.
The sexes are very similar in this species. Can't tell from these pics.
Theo
Posted by Christine Devillers on 04-02-2008 19:45
#3
Thanks for the confirmation Theo.
What do you need to tell if it is a male or a female?
Posted by Zeegers on 04-02-2008 21:12
#4
a view on the genitalia. Which are difficult to see in barbifrons, it would take five times more magnification and right angle.
Surprisingly enough, since in most female Phasia the genitalia are very exposed and therefore easy to see.
Posted by Christine Devillers on 05-02-2008 12:36
#5
Thanks for those precisions