Oxyporus (Oxyporus) stygicus Say, 1831

Webster, Reginald P. & DeMerchant, Ian, 2012, New Staphylinidae (Coleoptera) records with new collection data from New Brunswick, Canada: Oxyporinae, ZooKeys 186, pp. 263-271 : 266-268

Oxyporus (Oxyporus) stygicus Say, 1831 Map 6

Material examined.

New Brunswick, Carleton Co., Meduxnekeag River Valley Nature Preserve, 46.1940°N, 67.6800°W, 23.VI.2006, R. P. Webster, mixed forest, in Boletus sp. mushrooms (2 ♂, 1 ♀, RWC); Becaguimec Island in Saint John River, 46.3106°N, 67.5392°W, 13.IX.2006, R. P. Webster, mature mixed forest, on Pholiota sp. mushrooms on log (1 ♂, 3 ♀, NBM, RWC). Sunbury Co., Lakeville Corner, 45.9007°N, 66.2423°W, 10.IX.2006, R. P. Webster, silver maple forest, on Boletus sp. mushroom (2 ♂, RWC).

Collection and habitat data.

The biology, development, and a description of the larval characteristics of Oxyporus stygicus were reported by Hanley and Goodrich (1994). They reported this species from three families of fungi: Cortinariaceae ( Pholiota ), Polyporaceae ( Grifola , Polyporus ), and Tricholomataceae ( Armillaria , Omphalotus , Pleurotus ). Large series of immatures were collected from Pholiota aurivella (Fr.) Kummer, Pholiota sp., and Omphalotus illudens (Schw.) Bigelow. Weiss and West (1920) reported Oxyporus stygicus from Pleurotus ostriatus Fries. Hanley and Goodrich (1995b) considered Oxyporus stygicus to have a relatively narrow range of host species compared with other Oxyporus sp. This species was collected from Boletus and Pholiota spp. mushrooms in mixed forests and a silver maple ( Acer saccharum Marsh) forest in New Brunswick. Adults were collected during June and September.

Distribution in Canada and Alaska.

QC, NB, NS ( Campbell 1969).