Erichsonius inutilis (Horn, 1884)**

Webster, Reginald P., Smetana, Ales, Sweeney, Jon D. & DeMerchant, Ian, 2012, New Staphylinidae (Coleoptera) records with new collection data from New Brunswick and an addition to the fauna of Quebec: Staphylininae, ZooKeys 186, pp. 293-348 : 314-315

Erichsonius inutilis (Horn, 1884)** Map 32

Material examined.

New Brunswick, Queens Co., W of Jemseg at "Trout Creek", 45.8231°N, 66.1245°W, 11.IV.2006, R. P. Webster, silver maple swamp, sifting leaf litter from crotch of silver maple with multiple trunks (1 ♂, 1 sex undetermined, RWC); near Queenstown, 45.6904°N, 66.1455°W, 13.V.2008, R. P. Webster, old hardwood forest, in leaf litter in seepage area near small brook (2 ♂, 1 sex undetermined, RWC); ca. 3.5 km W of Lower Gagetown, 45.7497°N, 66.1846°W, 13.V.2008, R. P. Webster, mature red oak and red maple forest, in moist leaves on margin of vernal pond (1, RWC). York Co., Mazerolle Settlement, 45.8729°N, 66.8311°W, 28.IV.2006, R. P. Webster, stream margin (sun-exposed), in grass litter on muddy soil (1 ♂, RWC); Kelly’s Creek at Sears Road, 45.8723°N, 66.8414°W, 7.VI.2008, R. P. Webster, Carex marsh, treading (1 ♂, RWC); Fredericton at Saint John River, 45.9598°N, 66.6258°W, 19.VII.2005, R. P. Webster, river margin, under drift material (1, RWC).

Collection and habitat data.

Little was previously known about the habitat associations of this species. The only records with habitat data reported in Frank (1975) included specimens sifted from flood debris, swamp grass, ex nest of a meadow vole ( Microtus pennsylvanicus Ord), and one individual collected in a tamarack bog. In New Brunswick, this species appears to be associated with moist to wet habitats in forested areas, including seepage areas near small brooks, vernal pond margins, stream and river margins, and Carex marsh. Adults were sifted from moist leaves, grass litter on muddy soil, drift material, and by treading Carex . A few adults were sifted from leaf litter from the crotch of a silver maple with multiple trunks in early April in a silver maple swamp. This was presumably an overwintering site for these adults. Adults were collected during April, May, June, and July.

Distribution in Canada and Alaska.

ON, QC, NB ( Frank 1975).

Figures

Map 32. Collection localities in New Brunswick, Canada of Erichsonius inutilis.