Posted by Paul Beuk on 14-01-2021 09:31
#11
For orientation, see the glossay, for example
anterodorsal or
ad. It looks as if neither of you specimens has ad setae. The top one probably would fall into the
Mycetophila fungorum group, the bottom one in the
Mycetophila ruficollis group. The former was revised by Chandler in 1993 (I think all genitalia jobs). Not sure about the latter, but European species of the
ruficollis group are very similar and also require genital dissection for reliable ID.