Thread subject: Diptera.info :: Heleomyzid from 15.02.20 --> Gymnomus cf. caesius

Posted by Juergen Peters on 17-02-2020 21:29
#1

Hello,

I run across this/these fly(ies) two days ago in our garden (northwest Germany) at my banana baits and at night at light. I'm almost sure, that both are the same individual. About 6 mm in length.

Edited by Juergen Peters on 23-02-2020 20:36

Posted by Juergen Peters on 17-02-2020 21:30
#2

Pic #2

Posted by Juergen Peters on 17-02-2020 21:30
#3

Pic #3

Posted by Juergen Peters on 17-02-2020 21:31
#4

Pic #4, at night at lamp light.

Posted by Ectemnius on 23-02-2020 10:29
#5

Hello Juergen ,

With the four dorsocentrals with dark spots at their base probably Heleomyza sp. One would probably need collected material to identify the species, preferably a male.

Kind regards,

Ectemnius

Posted by Andrzej on 23-02-2020 12:18
#6

Not Heleomyza. Anterior orbital bristle is shorter than the posterior. It's a Gymnomus sp. If the abdomen is more grey than should be caesia species group, if not than a member of the spectabilis species-group...

BTW
I have never seen a Heleomyza species with such large dark dots at the base of dorsocentral bristles ;).

Posted by Juergen Peters on 23-02-2020 20:35
#7

Thank you Ectemnius and Andrzej!

It is not readily visible on the photos, but the abdomen seemed more gray, not orange.