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Hi,
in a vinegar trap to catch Drosophila, I found a male and a female Suillia. As it is not S. variegata, the species will be difficult to determine, and I haven't found a key that is open access. Does anybody know of one?
I kept the two specimina and I am interested in determining them, so help would be very much appreciated. As the genitals are quite prominent, I took some pictures of them - maybe this could give a hint or narrow down the possible species?

The flies were caught in the inner city of Vienna.

Greetings,
Lorin