Thoracophorus costalis (Erichson, 1840)**

Webster, Reginald P., Sweeney, Jon D. & DeMerchant, Ian, 2012, New Staphylinidae (Coleoptera) records with new collection data from New Brunswick, Canada: Scaphidiinae, Piestinae, Osorinae, and Oxytelinae, ZooKeys 186, pp. 239-262 : 247

Thoracophorus costalis (Erichson, 1840)** Map 14

Material examined.

New Brunswick, Queens Co., Cranberry Lake P.N.A, 46.1125°N, 65.6075°W, 11-18.VI.2009, 1-10.VII.2009, 10-15.VII.2009, 15-21.VII.2009, 21-28.VII.2009, 14-19.VIII.2009, R. Webster & M.-A. Giguère, mature (old) red oak forest, Lindgren funnel traps (19, AFC, RWC); same locality data and forest type, 7-22.VI.2011, M. Roy & V. Webster, Lindgren funnel traps (5, AFC, NBM); Grand Lake Meadows P.N.A., 45.8227°N, 66.1209°W, 5-19.VII.2011, M. Roy & V. Webster, old silver maple forest and seasonally flooded marsh, Lindgren funnel trap (1, NBM). York Co., 15 km W of Tracy off Rt. 645, 45.6848°N, 66.8821°W, 13-17.VII.2008, R.P. Webster, old red pine forest, Lindgren funnel trap (1, RWC); same locality data and forest type, 8-20.VI.2011, M. Roy & V. Webster, Lindgren funnel traps (2, NBM, RWC).

Collection and habitat data.

Brunke et al. (2011) reported this species from under bark, especially large beech logs, and occasionally in leaf litter. In New Brunswick, adults were captured in Lindgren funnel traps deployed in an old red oak forest, an old silver maple swamp, and an old red pine forest. Adults were captured during June, July, and August.

Distribution in Canada and Alaska.

MB, ON, QC, NB ( Campbell and Davies 1991).