Thread subject: Diptera.info :: Siphona

Posted by Nacho Cabellos on 06-08-2025 18:23
#1

Gallery forest. 700 m. South of Spain. May 5th

Maybe S. rossica

Posted by Nacho Cabellos on 06-08-2025 18:23
#2

ph2

Posted by Zeegers on 07-08-2025 18:54
#3

I see your point. But an ID from pic is ...tentative at best

Edited by Zeegers on 07-08-2025 18:55

Posted by Nacho Cabellos on 07-08-2025 19:21
#4

I know it...for me it's enough don't make big mistakes with the key...

Thanks a lot Theo!!

Posted by Zeegers on 08-08-2025 08:04
#5

No, you handledmthe key excellently.

But there are only 3 post DC, which worries me

Posted by Nacho Cabellos on 08-08-2025 08:29
#6

But S. rossica (according to Cerretti's key) would have 3 DC ps. According to that key, if I understand it correctly, the characteristics that would allow it to be distinguished would be:
1. Narrow gena
2. 3 post DC (or 4, with the second one very weak)
3. Prementum as long as or longer than the head
4. T1+2 with mediomarginals
5. Dark brown tegula
5. Black spots around the abdominal setae

I haven't actually consulted any other keys.