Ctenisodes piceus (LeConte, 1849)**

Webster, Reginald P., Chandler, Donald S., Sweeney, Jon D. & DeMerchant, Ian, 2012, New Staphylinidae (Coleoptera) records with new collection data from New Brunswick, Canada: Pselaphinae, ZooKeys 186, pp. 31-53 : 45-46

Ctenisodes piceus (LeConte, 1849)** Map 20

Material examined.

New Brunswick, Carleton Co., Two Mile Brook Fen, 46.3619°N, 67.6733°W, 5.VIII.2004, 6.V.2005, M.-A. Giguère, R. P. Webster, & J. Edsall, old growth eastern white cedar swamp, in litter at base of cedar (2, RWC). Northumberland Co., Goodfellow Brook P.N.A., 46.8943°N, 65.3796°W, 23.V.2007, R. P. Webster, old growth eastern white cedar swamp (many vernal pools), in litter, grasses and moss on hummocks near water (2, RWC). Queens Co., Cranberry Lake P.N.A, 46.1125°N, 65.6075°W, 28. VII– 6.VIII.2009, R. Webster & M.-A. Giguère, old red oak forest, Lindgren funnel trap (1, RWC). York Co., 9 km W of Tracy off Rt. 645, 45.6889°N, 66.8002°W, 5.IV.2010, R. P. Webster, old beaver flowage, in grass litter on clay near small brook (1, RWC).

Collection and habitat data.

In New Brunswick, Ctenisodes piceus was collected in old eastern white cedar swamps, an old red oak forest, and in an old beaver flowage. Adults were sifted from litter at the base of a cedar, from a mix of litter, grasses, and moss on hummocks (in eastern white cedar swamp), and from grass litter near a small brook. One adult was captured in a Lindgren funnel trap. Chandler (1997) reports specimens taken from leaf litter along the edges of streams and marshes, from mosses, from rotten wood, and at an ultraviolet light. Adults were collected during April, May, July, and August.

Distribution in Canada and Alaska.

ON, QC, NB ( Davies 1991).