Posted by John Carr on 08-02-2015 20:36
#5
This may be
Serromyia bicolor Borkent, 1990. The original specimens were from Bonn and the Caucasus, so it could plausibly range over most of southeastern Europe.
Quoting the description:
"The male of
S. bicolor is unusual in a number of characters and is the most distinctive of all the Holarctic species (other than
mangrovi). Colour pattern of both male and female palpus, the peculiar apex of the aedeagus, the swordlike parameres and a markedly slender (for a species of
Serromyia in the Holarctic) hind femur of the male are all unique to this species."