Bisnius siegwaldii (Mannerheim, 1843)

Brunke, Adam J. & Marshall, Stephen A., 2011, Contributions to the faunistics and bionomics of Staphylinidae (Coleoptera) in northeastern North America: discoveries made through study of the University of Guelph Insect Collection, Ontario, Canada, ZooKeys 75, pp. 29-68 : 42

Bisnius siegwaldii (Mannerheim, 1843)

Materials.

UNITED STATES: VA: Giles Co., Mountain Lake, on dead fox squirrel, 11 to 25-V-2008, A. Brunke (3).

CANADA: PEI: Long Pond, National Park, milieu marécageux (=marshy environment), 30-VII-1979, R. Sexton (2); West Covehead, débris sur la plage (=beach debris), 25-VII-1979, R. Sexton, (3).

Diagnosis.

Bisnius siegwaldii is easily recognized among other species of the genus in the northeast by the combination of: body not bicolored; elytra dark; pronotum with at least five punctures in each dorsal row; head with punctures arranged to form a ‘V’ ( Smetana 1995) (Fig. 7).

This species is transcontinental across northern North America with several collections made further south in both the east and west. It is currently known from Alaska, Alberta, British Columbia, California, Connecticut, Maine, Manitoba, Michigan, Montana, Newfoundland, New Brunswick, New Hampshire, New York, North Carolina, Nova Scotia, Northwest Territories, Ontario, Oregon, Québec, Saskatchewan, Tennessee, Vermont, Washington, West Virginia, Wisconsin, and Yukon Territory ( Smetana 1995). Herein we newly record it from Prince Edward Island and Virginia (Map 20). Bisnius siegwaldii is a common species found in carrion, dung, rotting fungi, decaying plant matter and wood, moss, and in vegetation near water ( Smetana 1995).