Calvia decemguttata 
Cambium Curculio 
Campfire Beetle 
Campsosternus candezei 
Canada Thistle Bud Weevil 
Cane beetle 
Cantharis decipiens 
Cantharis livida 
Cantharis melaspis 
Cantharis nigra 
Cantharis obscura 
Cantharis oregona 
Cantharis pellucida 
Cantharis rufa 
Canthon luteicollis 
Capnochroa fuliginosa 
Capnodis cariosa 
Capnodis tenebricosa 
Capraita circumdata 
Carabus auronitens 
Carabus catenulatus 
Carabus coriaceus 
Carabus glabratus 
Carabus insulicola