Key (.pdf)
to Longhorn beetles by Mike Hackston.
Buglife guide (.pdf)
to Longhorn beetles.
Images
on kerbtier.de
Google Book
Longhorn Beetles (Coleoptera, Cerambycidae) of Fennoscandia and Denmark: (Fauna Entomologica Scandinavica)
Compiled by Jane Bowman and Murdo Macdonald.
