Thread subject: Diptera.info :: Ulidiidae, maybe Otites formosa?

Posted by Michael Stemmer on 13-05-2026 06:17
#1

Hello everyone,

yesterday I found 3 species of a fly on trees on the Stux hill, 2 on oak, one on Crataegus. Could my determinaton be correct? Length, from nose to wingtip, 14 mm. Fly1 and 2 are one individuum, as well as fly3 and 4.


Location: Germany, Rhineland-Palatinum, 53572 Unkel, river Rhine valley, Stux hill, dry and warm habitat (grapeyards), nearby deciduous forest (oak, Fagus ...), May 12th, 2026, about 140 m NN.

Thanks in advance,

Michael

Posted by Michael Stemmer on 13-05-2026 06:17
#2

#2

Posted by Michael Stemmer on 13-05-2026 06:18
#3

#3

Posted by Michael Stemmer on 13-05-2026 06:18
#4

#4

Posted by Michael Stemmer on 13-05-2026 06:18
#5

#5

Posted by eklans on 13-05-2026 11:44
#6

Hello Michael, the first 3 images show a female Otites porcus, I think, because occiput, femora and tibiae are widely orange-yellow from:
E. P. Kameneva & V. A. Korneyev (2019): New nomenclatural changes in the genus Otites Latreille, 1804
Images 4 and 5 do not show enough characters to ID for me.

Posted by Nosferatumyia on 13-05-2026 18:34
#7

Eric is right Otites porcus (Latreille, 1804) = jucunda = fastuosa Rond.
Occiput and femora black-and-yellow
In Germany, it occurs in North Rhine-Westphalia, Baden-Württemberg, and Bavaria - ossibly to Rine watershed in the East, te other part of middle Europe has similar O. rufieps (former fomosa, preocc. name) and ornata (former bacescui)
See our revision here:
https://doi.org/1...do.3585580

Edited by Nosferatumyia on 13-05-2026 18:34