Thread subject: Diptera.info :: Phryxe?

Posted by alon on 13-05-2007 00:17
#1

Is this Phryxe sp.? Maybe P. vulgaris?

Posted by ChrisR on 13-05-2007 01:36
#2

Not Phryxe - bare eyes & apical scutellars are diverging. Possibly Meigenia?

Posted by Zeegers on 13-05-2007 09:09
#3

My guess would be Voria ruralis
Based on the peculiar bristles on the scutellum

And once on this trail, you can see the characteristic oblique vein in the wing, though with difficulty.

A common species specialized in parazitizing Plusia gamma and likes

Theo Zeegers

Posted by ChrisR on 13-05-2007 10:13
#4

Good call Theo - I missed the angle of the m-cu vein. :)

Also, I had never associated the strange scutellars with Voria - perhaps because it comes out in Belshaw very easily without refering to them. But it is a nice confirmatory feature, if any more were needed on such an easy tachinid :D

I don't see many Athrycia here - do you know if they also have the same scutellars?

Edited by ChrisR on 13-05-2007 10:21

Posted by Zeegers on 13-05-2007 13:33
#5

Well, the crossvein was easily missed, I agree.
Voriini are all quite similar in most respects.
Athrycia is easily distinguished by the present of discal setae on tergites, as Chris knows. Athrycia are less common and possibly less easily taken on picture (hardly see them on flowers, Voria is often encountered on Heracleum)

Theo

Posted by ChrisR on 13-05-2007 14:17
#6

Yes, I think all my (2 or 3) Athrycia were taken in Malaise traps so they look a bit rough ... I probably got 1 Athrycia to every 100 Voria! :)

If the photo showed that huge down-curved facial bristle it would have made identification a bit easier ;)

Edited by ChrisR on 13-05-2007 14:18

Posted by Zeegers on 13-05-2007 20:43
#7

Actually, you can see those huge bristles on the right parafacialia, but the angle is so peculiar you did not recognize them as such !

Theo