Thread subject: Diptera.info :: Eutolmus rufibarbis , male for ID Belgium 2021-08-04

Posted by Tetrao on 05-08-2021 09:50
#1

I pictured this Asilidae in Belgium on 2021-08-04 and thinked possible to have a Eutolmus rufibarbis, male.
I have a problem with setae color under hypopygium ... Here they are black !
On the website for Asilidae identification I see they are red ...
Can we ID this specimen up to the species ?

observations.be/media/photo/40591781.jpg

observations.be/media/photo/40591782.jpg

observations.be/media/photo/40591784.jpg

Thank you for comments !!!

Posted by Quaedfliegh on 05-08-2021 15:27
#2

This is Machimus intermedius

Posted by Tetrao on 05-08-2021 16:55
#3

Thank you very much, Reinoud !!!

Posted by Tetrao on 05-08-2021 17:58
#4

I read on the website and in the databases that Machimus intermedius (Holmgren, 1852) is a synonyme of Machimus setibarbis (Loew, 1849) ...
Can you confirm it ?
Machimus intermedius (Holmgren, 1852) isn't known by INPN nor Fauna Europaea ..., only Machimus setibarbis (Loew, 1849).
In Gbif.org we have it as on observations.be !

Thank you very much again for your Identification !!!

Posted by Quaedfliegh on 05-08-2021 18:24
#5

It is a long story... the synonymy was faulty but there is a problem with the taxon. It might be M. caliginosus as well but no males are known from that species with a messy result that in most ID works authors mixed up several species. From M. intermedius males are known and until further notice it is the name we use in Germany, Belgium and the Netherlands. We are working on several publications. On observation.be you can find quite some observations.

Posted by Tetrao on 05-08-2021 19:08
#6

Thank you very much, Reinoud !
I’ve already change the species on observations.be !

Edited by Tetrao on 05-08-2021 21:11