Scaphinotus marginatus, the margined snail-eating beetle, is a species of ground beetle in the family Carabidae. It is found in North America (Alberta, British Columbia, Quebec, Alaska, California, Idaho, Montana, Oregon, Washington, Wyoming), where it inhabits coniferous, mixed and deciduous forests, often along streams and lakes.
Adults are brachypterous and nocturnal. They prey on snails and slugs.A Treatise on the Western Hemisphere Caraboidea (Coleoptera)
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