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Posted by Christine Devillers on 19-10-2021 20:22

Hi,

Is it a female of Phebellia sp ?
Belgium, Spa, 2020-07-18

Thanks

Edited by Christine Devillers on 21-10-2021 20:25

Posted by Zeegers on 20-10-2021 12:05

I see your point, but I don't think so.
On the second picture, it seems there are three strong bristles present on the humerus standing in a tringle. However, on the third pic you can see that the actual central bristle on humerus is actually broken off. The apparent 'basal' bristle of the triangle is actually not on the humerus, but behind.

Also, it doesn't 'feel' like Phebellia: the discal bristles are not too strong.

Despite your efforts, it is difficult to tell what it is: I can't see the apical scutellar bristles properly, for instance. Also other bristles are not in focus, alas.

Theo

Posted by Christine Devillers on 20-10-2021 19:40

Thanks Theo,

I thought I didn't have pictures of the apical scutellar bristles, but I just found this picture where they seem to be crossed and erect (so if that's correct I should have seen that it wasn't Phebellia).
Does this picture help ?

Christine

Posted by Zeegers on 21-10-2021 07:20

Thank you !

So, Phryxe nemea is the first to come to mind, but the vertex is a bit narrow and as said, the apparent lack of discals bother me. Only alternative I see is Bactromyia, which agrees on mentioned points, however, wing venation contradicts.

So my best shot is Phryxe nemea with broken-off discals…..

Theo

Posted by Christine Devillers on 21-10-2021 20:30

Thanks a lot Theo,

Very glad (as always) to have all your explanations.

Christine