Posted by Stephen R on 18-12-2011 15:45
#5
A male
Hydrophoria. In Britain this would key to
H. linogrisea.
The yellow postpedicel and genital segments and the lack of darkening on the fore-femur seem unusual compared with the few images I have seen,but they may well be within normal variation. (I see Fauna Eur. lists an Asian species
H. rufitibia which has appeared in Germany and Greece, but I know nothing about it.)