Thread subject: Diptera.info :: Tachinidae ID? -> Maybe Sturmia bella
Posted by
smol on 08-09-2023 18:45
#1
Netherlands, today, near lake
Edited by
smol on 14-09-2023 19:36
Posted by
smol on 11-09-2023 20:12
#2
Excuse my lack of expertise, I tried to use the Matrix ID again (http://www.tachinidae.eu/free/default_moschweb.aspx). With some checks about the wing veins (see below), I got
Lypha genus. But I am very doubtful…
Wing: cell 4+5 open, CS6 missing, M with stub visible shorten than crossvein R-M, bend of M angled but not at a right angle
#3
I do not think this is
Lypha.
The tip of vein M in tribe Polideini is typically curved, like tribe Exoristini but less elongated and closer to a quarter circle. The eyes of Polideini are normally hairy. The scutellum tends to have very long bristles.
This has the general appearance of Goniini or Eryciini, what an American author once called the "vast central mass" of Tachinidae with few distinguishing features.
Posted by
Zeegers on 12-09-2023 07:53
#4
Well, the calypter is very “Sturmiini-ni”. and given habitus and date, I bet Sturmia bella.
Theo
Posted by
smol on 14-09-2023 19:35
#5
Thank you both for this feedback! A lot of information for the few angles I could photograph.
I reflected my initial wing identification and found some wrong interpretations:
1. The "M stub" is actually missing, the wing fold was interpreted as a continuation of the M-vein
2. I was not aware how small the sixth costal sector is. Hard to judge from the pictures, but likely there is a small extension.
Appreciated!