Thread subject: Diptera.info :: Helomyzidae serrata or breviciliata

Posted by Luc Elshout on 05-02-2024 17:00
#1

Hello,
Last month I caught this specimen in Limburg, the Netherlands. In a limestonequarry.
What species is this? We are confused by the key of Czerny, what should be the wimpern?
Kinds regards

waarneming.nl/media/photo/84193393.jpg
waarneming.nl/media/photo/84193392.jpg

Posted by John Carr on 05-02-2024 17:18
#2

Quoting Czerny's description of H. breviciliata:

"Randborsten der Flügel äußerst kurz, unter den ebenfalls kurzen Wimpern ganz ver­ schwindend."

I believe Randbosrsten (Flügelrandborsten) are the bristles on the costa typical of Heleomyzidae, while Wimpern in the context of a wing are the small hairs found on the costa of many flies.

Posted by Luc Elshout on 05-02-2024 17:37
#3

Hello John,
Thanks for your reply. Then it should be serrata. Does anyone know if there is a difference in genitalia? Or is that not known or is there no difference?

Posted by Andrzej on 05-02-2024 20:07
#4

Heleomyza serrata (L.)