#1
I take pictures of insects (all), but the lack of biological education does not identify the material. I beg to give all possible assistance in the definition.
Russia, South-East of Moscow region, a garden plot in the countryside,
2014.06.16
#3
Thank you for your determination.
If you do not mind, I can put a precise definition for about 30 pictures of this kind of flies, all Eastern European.
Maybe something will be interesting for you