Posted by RobertZ on 18-07-2016 10:00
#6
If that's Norway lowland (not mountains) you have rather only 3 options: S. elegans, S.clunipes and S.clavata. I think you may have the latter which (females) is similar and in most cases mistaken with S. verecunda. Males of Sphegina can be identified by examining genitalia without any doubts. Revision of the material in Poland showed we have S. clavata lowlands (incl. Baltic Coast) and S. verecunda in higher mountains only (southern Poland). Robert.