Sepedophilus crassus (Gravenhorst, 1802)

Webster, Reginald P., Sweeney, Jon D. & DeMerchant, Ian, 2012, New Staphylinidae (Coleoptera) records with new collection data from New Brunswick and eastern Canada: Tachyporinae, ZooKeys 186, pp. 55-82 : 58-59

Sepedophilus crassus (Gravenhorst, 1802) Map 3

Material examined.

New Brunswick, Albert Co., Caledonia Gorge P.N.A., 45.8257°N, 64.7791°W, 6.VII.2011, R. P. Webster, old hardwood forest (sugar maple and beech), on Polyporus varius (2, NBM). Carleton Co., Meduxnekeag Valley Nature Preserve, 46.1907°N, 67.6740°W, 4.VIII.2006, 8.VIII.2006, R. P. Webster, hardwood forest, in fleshy polypore fungi on side of log (2, NBM); Jackson Falls, Bell Forest, 46.2200°N, 67.7231°W, 16.IX.2006, R. P. Webster, mature hardwood forest, on fleshy polypore fungi on beech log (1 ♂, RWC); same locality, collector and forest type, 7.VI.2007, in polypore fungi on large basswood log (1, NBM); same locality and forest type, 31.VII-7.VIII.2009, 7-12.VIII.2009, R. Webster & M.-A. Giguère, Lindgren funnel traps (2, AFC). Sunbury Co., Acadia Research Forest, 45.9866°N, 66.3841°W, 30.VI-8.VII.2009, 4-11.VIII.2009, R. Webster & M.-A. Giguère, mature (110 year-old) red spruce forest with scattered red maple and balsam fir, Lindgren funnel traps (2, AFC). York Co., Fredericton, Odell Park, 45.9570°N, 66.6695°W, 19.VI.2005, R. P. Webster, old growth hemlock forest, on bracket fungi (6 ♂, 6 ♀, NBM, RWC); Charters Settlement, 45.8286°N, 66.7365°W, 15.IX.2006, R. P. Webster, mature mixed forest, in polypore fungi on dead (standing) spruce (1 ♀, RWC).

Collection and habitat data.

Campbell (1976) reported that adults were frequently collected from rotten wood, from deep layers of decaying leaves, and from bracket fungi and mushrooms. Most specimens from New Brunswick were collected from fleshy polypore fungi and bracket fungi on standing dead trees and logs. Some adults were also collected from Lindgren funnel trap samples. Two specimens were collected from Polyporus varius Fr. on a rotten log. This species was found in sugar maple and beech forests, a red spruce forest, an old-growth hemlock ( Tsuga canadensis (L.)) forest, and mixed forests. Adults were collected during June, July, August, and September.

Distribution in Canada and Alaska.

ON, QC, NB, NS ( Campbell 1976; Bishop et al. 2009).