Sphaeroderus canadensisSphaeroderus canadensis is a species of ground beetle in the family Carabidae. It is found in North America, where it inhabits coniferous, deciduous and mixed forests.Adults are brachypterous and nocturnal.SubspeciesThese two subspecies belong to the species Sphaeroderus canadensis:Sphaeroderus canadensis canadensis Chaudoir, 1861 - Canadian false snail-eating beetleSphaeroderus canadensis lengi Darlington, 1933 - '''Leng's false snail-eating beetle'''