Thread subject: Diptera.info :: Chaetostomella sp.? --> Chaetorellia sp.
Posted by karl7 on 19-10-2025 14:13
#1
Have a nice Day. One Question please. Is this a Chaetostomella species and can it be identified more precisely? I would be very grateful for an answer.
Data: Austria, Lower Austria, Tattendorf, 220m, dry flowering area, 2.5.2025, size approx. 3-4mm
Kind regards Karl.
Edited by karl7 on 22-10-2025 19:10
Posted by karl7 on 19-10-2025 14:14
#2
2.View
Posted by karl7 on 19-10-2025 14:14
#3
3.View
Posted by eklans on 19-10-2025 14:52
#4
I think your fly is a
Chaetorellia jacea (
Chaetostomella cylindrica has only one pair of dc bristles and one pair of black spots).
John T. Smit(2021): De Nederlandse Boorvliegen (Tephritidae)
Posted by Nosferatumyia on 19-10-2025 18:08
#5
Indeed, a
Chaetorellia, but
not jaceae (which has longer ovipositor, oblique crossbands and partly rusty stripes on its back.
It rather could be a dark-back morph of
C. acrolophi. If you know the plant, it would facilitate ID.
Posted by karl7 on 20-10-2025 11:39
#6
Hello Eric and Val thank you for the Answer. Unfortunately, you can't see much of the plant. It looks like a Centaurea species. Perhaps Centaurea stoebe. But I'm not sure.
In any case, I will photograph the plant itself in the future. Then we'll stick with Chaetorellia sp.
Kind regards Karl.
Posted by Nosferatumyia on 20-10-2025 22:48
#7
Centaurea stoebe (i.e., neither C. jacea nor C. scabiosa) then leads straight to
Chaetorellia acrolophi
A rare now case could be
Centaurea cyanus, with
Chaetorellia australis on it. That plant itself however can be very rarely found.
Edited by Nosferatumyia on 20-10-2025 22:51
Posted by karl7 on 22-10-2025 19:10
#8
Have a nice evening Val. Unfortunately, the other Centaurea species also occur. Centaurea jacea also occurs. Centaurea scabiosa and Centaurea cyanus are rare.
But with Centaurea triumfetti I have another Centaurea species that occurs. So we stick with Chaetorellia sp.
Kind regards Karl.