Ischnosoma flavicolle (LeConte, 1863)

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 : 33

Ischnosoma flavicolle (LeConte, 1863)

Materials.

CANADA: ON: Bruce Co., Dorcas Bay, dunes, pans under malaise, 5 to 13-VI-1999, S.A. Marshall (1).

Diagnosis.

Ischnosoma flavicolle is easily distinguished from others of the genus by the distinctly bicolored elytra that each lack a humeral spot ( Campbell 1991) (Fig. 3).

This species is primarily southeastern in distribution, with a northward extension along the Atlantic coast, and was known previously from Alabama, Arkansas, District of Columbia, Florida, Georgia, Illinois, Kansas, Kentucky, Louisiana, Maryland, Massachusetts, Mississippi, Missouri, New Hampshire, New Jersey, New York, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, and Virginia ( Campbell 1991). Herein we here record this species from Canada (Ontario) for the first time (Map 3). This record represents a significant range expansion and is surprising since the forest of the Bruce Peninsula is known for its dominant boreal elements compared to the more ‘southern’ Carolinian forests in south-western Ontario ( Marshall et al. 2001). Throughout its range Ischnosoma flavicolle is frequently collected from sifted litter in a variety of forest types, and hammocks in the southern extremes; it has also been found in grasslands, carrion, under bark ( Campbell 1991), and in stream drift ( Watrous 2008). The record reported here is from an inland dune on the Lake Huron side of the Bruce Peninsula. Further collecting is necessary to delimit the full range of this apparently widespread species.