Thread subject: Diptera.info :: Siphona: are these photos good enough for a species identification?

Posted by eklans on 03-06-2021 09:54
#2

Hi Rayan, I've tried to use the T&H key on your images and ended up with rossica (but some characters are not clearly to be seen and fauna.eu doesn't report it for the Netherlands):
- epaulette visibly darker than basicosta?
- 2nd antennal segment yellow (base of third, too?)
- 2 strong marginal bristles on tergite 2!
(see https://diptera.i...d_id=88303