evi wrote:
Hi Marcello
Here vein key from "Martin Meinander: The Neuroptera and Mecoptera of Eastern Fennoscandia"
Basal cross-vein between Rs and M1+2 before apex of the intra-median cell.
This vein key is 100% right only for species in Fennoscandia. In Middle and in Southern Europe there are also other species which has this kind of situation with that vein. For example C.mediterranea, C.mutata. But I think still good key to reduce possible species in Middle and in Southern Europe
BR Esko