Thread subject: Diptera.info :: Compsilura concinnata (Tachinidae)

Posted by Tony T on 31-08-2008 02:36
#1
27 August 2008, NB, Canada.
Ovipositor of a Tachinid. Resembles Celatoria but neither of the 2 species in this genus get as far north as NB.

EDIT: title changed
Edited by Tony T on 05-09-2008 10:30

Posted by Tony T on 31-08-2008 03:08
#2
Length: 8mm

Posted by Zeegers on 31-08-2008 07:57
#3
It is clearly a Blondeliini, so point 119 in key by Wood (Manual).

An obvious possibility is Compsilura: eyes are hairy and I don't see ocellar bristles.
Facial ridge with strong bristles going up.

That's one genus we share.


Theo

Posted by ChrisR on 31-08-2008 09:34
#4
Yes, the piercer and the saw-toothed bristles where the tergites touch ventrally is quite distinctive of a few genera - should be easy to key out :)

Posted by Tony T on 31-08-2008 20:11
#5
With the great clues from Theo and Chris ID to species was easy. Thanks guys.

Posted by Susan R Walter on 04-09-2008 21:44
#6
And its name is...? :|

Posted by Tony T on 04-09-2008 23:11
#7
Damn, now you are really putting me on the spot. At the moment I'm batting 100, I can't do better but if my ID is wrong I'll have mud on my face. So trust me, I know what it is. It's a European Compsilura and we have only 1 in NA.

Posted by Zeegers on 05-09-2008 07:12
#8
Compsilura concinnata.
Interesting case.
"Palaearctic. Introduced and established in northeastern USA and southeastern Canada, etc, etc"
(Catalogue of the Tachinidae of America north of Mexico, O'Hara & Monty Wood, 2004)


So that's why it looked so familiar !

Theo

Posted by ChrisR on 05-09-2008 08:13
#9
If it is Compsilura then they would look great in the gallery :D

Posted by Tony T on 05-09-2008 10:33
#10
Chris Raper wrote:
If it is Compsilura then they would look great in the gallery :D


Chris: Attaching a few more photos to show diagnostic characters. Which images would be OK for Gallery? I can, of course 'break up' the plate.

Posted by jorgemotalmeida on 05-09-2008 10:42
#11
yep .individual images for the gallery is the best. :)

Posted by Zeegers on 05-09-2008 17:25
#12
The wing venation, hairy eyes, lack of ocellars and 4 post DC (unusual in Blondeliini): all indicates Compsilura concinnata. So there can be no doubt.


Theo

Posted by ChrisR on 05-09-2008 19:10
#13
I'd say submit all of them - they all look great and any non-layered photos of Compsilura are unlikely to be better :)