Erichsonius pusio (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 : 316-317

Erichsonius pusio (Horn, 1884)** Map 35

Material examined.

New Brunswick, 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 ♂, 1 ♀, 2 sex undetermined, RWC); near Mazerolle Settlement, N of Hwy 2 near exit 271, 45.8764°N, 66.8260°W, 7.VI.2008, R. P. Webster, brook margin in beaver meadow, in fine gravel/clay mixed with grass (2 ♂, 2 sex undetermined, RWC); Charters Settlement, 45.8395°N, 66.7391°W, 6.V.2008, R. P. Webster, mixed forest, in flight, collected with aerial net between 15:00 and 17:00 h (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 a specimen collected from a funnel extract of oak-beech leaf litter and an individual in a windrow sample. In New Brunswick, most specimens were sifted from grass litter on muddy soil or from litter with grass mixed with fine gravel/clay along the margins of a stream through a beaver meadow. One adult was collected with an aerial net during evening flight. Adults were collected in April, May, and June.

Distribution in Canada and Alaska.

BC, ON, QC, NB ( Frank 1975).

Figures

Map 35. Collection localities in New Brunswick, Canada of Erichsonius pusio.