#1
I found this pupa, together with a larve (which is not shown here) in a slightly brackish ditch on the isle of Goeree, The Netherlands (near Ouddorp) on 4.v.2010. Within the last abdominal segment there is some chitinized toothed structure visible which may belong to the adult genitalia.
Can anybody confirm the identity?
here are the photo's of the habitus