Philonthus cognatus Stephens, 1832

Majka, Christopher, Klimaszewski, Jan & Lauff, Randolph, 2008, The coastal rove beetles (Coleoptera, Staphylinidae) of Atlantic Canada: a survey and new records, ZooKeys 2 (2), pp. 115-150 : 136

Philonthus cognatus Stephens, 1832

NOVA SCOTIA: Colchester Co.: Five Islands Park, 10.VI.1988, E. Georgeson, UV light trap, (1, NSNR) ; Halifax Co.: Sable Island, 22.IV.1976, 23.VII.1976, B. Wright, under dead grass, boards, & debris, (2, NSMC). PRINCE EDWARD ISLAND: Queens Co. : Cavendish, 14.VII.2002, C.G. Majka, coastal lagoon, under rock, (1, CGMC) ; Prince Co.: Belmont Park , 9.VII.1988, Y. Bousquet, (1, CNC) .

Philonthus cognatus is an introduced Palearctic species, widely distributed in both eastern and western North America (there are few records from the central portions of the continent). Its distribution in North America is shown in Smetana (1995). Smetana (1995) records it from a wide range of habitats. Hammond (2000) includes it as a generalist species found in the upper levels of salt marshes in Great Britain. It is a common species in Atlantic Canada and there are some records from coastal environments ( Wright 1989), however, it is primarily found in synanthropic inland situations.