Thread subject: Diptera.info :: Spider Fly (Acroceridae / Kugelfliege)

Posted by cpape on 14-07-2023 13:58
#1
Hello;

I found this small-headed fly in a small forest sitting on a birch (Betula).

Is determination up to the species possible?

I did not find much information on this kind of flies; Acrocera orbiculus seems to be a candidate.

More high-res images below.

Location: Hesseberg, Forest, Sieboldshausen/Dramfeld, Süd-Niedersachsen (Lower-Saxony)

Thanks!

---Christian

sieboldshaeuser-wald.de/b/images/kugelfliege3.jpg

sieboldshaeuser-wald.de/b/images/kugelfliege4.jpg

sieboldshaeuser-wald.de/b/images/kugelfliege2.jpg

sieboldshaeuser-wald.de/b/images/kugelfliege1.jpg

Posted by Zeegers on 14-07-2023 14:11
#2
Yes, a female.

Theo

Posted by cpape on 14-07-2023 14:33
#3

Thank you Theo!

I found this thread about the sex of Acrocera, very interesting!
https://diptera.info/forum/viewthread.php?forum_id=5&thread_id=102351

And thank you Paul for the account activation!

Posted by cpape on 14-07-2023 14:34
#4

I forgot to mention the date when I found it, it was 2023-06-30.

Posted by Zeegers on 14-07-2023 17:24
#5
FYI: the book is available now

https://jeugdbondsuitgeverij.nl/product/families-of-flies-with-three-pulvilli/