Oxyporus (Oxyporus) major Gravenhorst, 1806**

Webster, Reginald P. & DeMerchant, Ian, 2012, New Staphylinidae (Coleoptera) records with new collection data from New Brunswick, Canada: Oxyporinae, ZooKeys 186, pp. 263-271 : 265-266

Oxyporus (Oxyporus) major Gravenhorst, 1806** Map 4

Material examined.

New Brunswick, Carleton Co., Meduxnekeag River Valley Nature Preserve, 46.1907°N, 67.6740°W, 19.VIII.2004, 7.IX.2004, 14.IX.2005, R. P. Webster, mixed forest, in Boletus sp. mushrooms (3 ♂, 2 ♀, RWC).

Collection and habitat data.

Campbell (1969) reported this species from a Lactarius sp. ( Russulaceae ). The biology, development, and a description of the larva of Oxyporus major were reported by Goodrich and Hanley (1995b). They reported this species from six families of fungi. Adults were most frequently collected from Stropaharia hardii Atkinson ( Strophariaceae ), Lepiota acutaesquamosa (Weinm.) Kummer ( Lepiotaceae ), and Armillaria spp. ( Tricholomataceae ). The only known larval host is Stropaharia hardii and Lepiota acutaesquamosa ( Goodrich and Hanley 1995 a, b). In New Brunswick, Oxyporus major was collected from Boletus sp. ( Boletaceae ) mushrooms during July, August, and September.

Distribution in Canada and Alaska.

QC, NB ( Chagnon 1917). Campbell (1969) considered a record from Montreal, Quebec based on specimens in the Fauvel Collection as doubtful unless verified by additional collecting and, therefore, did not report this species from Canada. However, there was a record supported by a specimen from Quebec (Montreal Island) reported by Chagnon (1917) that confirmed the presence of this species for the province of Quebec and Canada. There are also recent specimens from Quebec in the R. Martineau Collection at the Laurentian Forestry Centre’s Insectarium in Quebec City, Quebec and in the CNC.