Thread subject: Diptera.info :: Large Tachinidae?->Billaea maritima

Posted by Armen Seropian on 20-06-2026 12:13
#1

Georgia, Tbilisi, 20 June 2026.

Edited by Armen Seropian on 22-06-2026 18:57

Posted by eklans on 20-06-2026 14:40
#2

Female Billaea maritima, I think.

Posted by Armen Seropian on 20-06-2026 20:18
#3

Thanks, Eric!
Any chance it's B. triangulifera?

Posted by eklans on 21-06-2026 11:46
#4

Hi Armen, I don't think so. B. maritima I've checked with Cerretti (2010): I tachinidi della fauna italiana.
It reads there that maritima's lateral presutural bands are subrectangular and the median band is hardly visible. Also, tergite 3 is usually without median marginals. And in my own experience the abdominal pattern of B. triangulifera differs conspiciously from maritima's pattern. I include an image of a female B. triangulifera.

Posted by Zeegers on 21-06-2026 19:22
#5

Well, the black triangles only show up in hind view and I see clearly one in the last pic, so I'd prefer triangulifera.

Theo

Posted by Armen Seropian on 21-06-2026 20:14
#6

Dear Eric,
Thanks for your thorough explanation! :)