Thread subject: Diptera.info :: Tachinidae, Wagneriini
Posted by Carnifex on 27-03-2019 23:11
#1
Hi,
is it possible to ID this tachinid on species level? I guess it is Ramonda or another Wagneriini relative. Size: 6mm; Date: Mid March in Vienna
Cheers, Lorin
Edited by Carnifex on 09-04-2019 22:05
Posted by Zeegers on 28-03-2019 07:41
#2
Yes it is a Wagneriini.
First impression is Periscepsia (Ramonda, if you like) carbonaria.
I would need to have a good view on a humerus to be more sure.
Theo
Edited by Zeegers on 28-03-2019 07:41
Posted by Carnifex on 28-03-2019 16:25
#3
Does this help? Also, what features are needed for distinction from similar species?
Posted by Zeegers on 28-03-2019 18:32
#4
I need to see the loaction of the bristles. But the basal one seems broken off ...
Theo
Posted by Carnifex on 28-03-2019 19:35
#5
I can make a lateral image of the other side. Also, I got a second individual, have to figure out whether it is in fact the same species. Are you using the Tschorsnig key? There it is stated that Periscepsia starts to appear in Mid May....
Posted by Zeegers on 29-03-2019 18:33
#6
Weel, I’d look for yourself. I really can’t tell. Are there 2 or 3 or 4 bristles and are the basal three on a straight line or in a triangle.
From these pics, it seems that the left humerus differs from the right, probably bevause some are broken off ? You can check the pores.
Theo
Posted by Carnifex on 09-04-2019 22:04
#7
I considered the Tschorsnig key and accordingly made some new photos.
- Outer verticals at least half the length of inner; long 3rd antennal segment and white hairs at the back of the head lead me to genus
Wagneria.
- Costal spine present and lack of discal bristles on tergites + hollowed tergite 2 (see arrows) results in
W. cunctans.
Is the conclusion plausible?
Cheers, Lorin
Posted by Zeegers on 10-04-2019 06:40
#8
Thanks. Periscepsia carbonaria .
Theo
Posted by Carnifex on 10-04-2019 16:50
#9
What about the color of the palps - shouldn't they be yellow in
Periscepsia?
Posted by Carnifex on 15-04-2019 21:09
#10
any more comments on this one?