Elaphrus (Elaphrus) finitimus Casey 1920
Geographic: NEA
Distribution: Native, New World. USA – AZ, CA, CO, ID, MT, NV, OR, UT.
Common name:Highland Marsh and Bog beetle
Synonyms: Elaphrus finitimus Casey, 1920:137
Elaphrus ruscarius foveatus Pierce, 1948:54
Macrohabitat: Lowlands to mountains, 13 – 2743 meters altitude, in pine/fir
forest impoundments with Scirpus. Microhabitat: Adults are ground-dwelling on wet clay
beaches that are sun-exposed, yet protected from winds and strong wave action and free of
vegetation, e.g. margins of beaver ponds with Typha marshes at their borders. Dispersal abilities:
Macropterous, capable of flight; swift runners. Seasonal occurrence: Adults have
been found in March – July. Behavior: Adults are diurnal, predaceous and active in the sunshine.
Adults hibernate.