By the way, if it is sicarius, it seems like it is new to Norway. I cant fint it in: A Checklist of Norwegian Ichneumonidae
by Andrey Humala and Alexey Reshchikov (2012), but I guess there is a lot of unpublished material. Norway not mentioned as distribution at taxapad either.
Camille: I see you identified this one:viewtopic.php?f=15&t=15301&p=47129&hilit=Cratichneumon+sicarius#p47129