Thread subject: Diptera.info :: Small Brachycera from mediterranean dunes, France

Posted by caliprobola on 03-03-2026 11:31
#1

Hi all,

this fly was caught in marine dunes near Perpignan in mediterranean France. The fly looks very peculiar with a typical head profile with short antennae and enlarged and flattened hind tibia but somehow i get lost in the Oosterbroek family key.
I can only take some phone pics through the bino so try to describe some features.
It has 4 frontals of which the lower 2 larger and pointing inwards, it has 3 rows of interfrontals of which the lower row (above the antennae) consists of 4 bristles, the 2 upper ones of 2 bristles. It has clear Oc's and inwards pointing P-bristles. It has clear inner and outer vertical bristles. It has a clear vibrisse and a row of small bristles along the lower edge of the genae. The antennae are very short, the arista seems bare.

Could it be Leptometopa, Milichiidae?

observation.org/media/photo/144685965.jpg

observation.org/media/photo/144685966.jpg

Edited by caliprobola on 03-03-2026 11:40

Posted by Jan Maca on 03-03-2026 16:10
#2

Your suggestion of Leptometopa seems me correct.

Posted by caliprobola on 03-03-2026 20:35
#3

Thanks for the confirmation, dear Jan |t. Do you (or anyone) know if there are keys available for France? I only find Seguy, 1928 (faune de france, 28) for the region but I don't know how up to date that one is (part of the genus is in the genus Hypaspistomya in that work).