Tetartopeus capitosus Casey, 1905

Webster, Reginald P. & DeMerchant, Ian, 2012, New Staphylinidae (Coleoptera) records with new collection data from New Brunswick, Canada: Paederinae, ZooKeys 186, pp. 273-292 : 278-279

Tetartopeus capitosus Casey, 1905 Map 9

Material examined.

New Brunswick, Queens Co., W of Jemseg at "Trout Creek", 45.8240°N, 66.1220°W, 4.VI.2004, R. P. Webster, silver maple swamp, margin of ve rnal pond in moist leaf litter on muddy soil (1 ♀, RWC); Grand Lake near Scotchtown, 45.8762°N, 66.1816°W, R. P. Webster, 5.VI.2004, lake margin, under drift material (1 ♀, RWC); same locality data and collector, 25.V.2006, oak and maple forest near lakeshore, in litter near vernal pond (1 ♂, 1 ♀, RWC); Upper Gagetown, bog adjacent to Hwy 2, 45.8316°N, 66.2346°W, 23.V.2006, R. P. Webster, tamarack bog, treading Carex into water (1 ♂, RWC). Sunbury Co., Maugerville, Portobello Creek N.W.A., 45.8992°N, 66.4248°W, 5.VI.2004, R. P. Webster, silver maple swamp, margin of small (vernal) pond, in leaf litter (1 ♀, RWC); Sheffield, Portobello Creek N.W.A., 45.8952°N, 66.2728°W, 17.VII.2004, R. P. Webster, silver maple swamp, u.v. light (1 ♀, RWC).

Collection and habitat data.

Nearly all Tetartopeus spp. have been collected in association with wetland habitats, usually in accumulations of damp leaf litter, moss, and other debris along streams, bogs, marshes, swamps, and ponds ( Watrous 1980). Watrous (1980) noted that Tetartopeus capitosus (as Latrobium (Tetartopeus) punctulatum LeConte) occurred mostly in the boreal forest region but gave no specific habitat data for this species. In New Brunswick, adults of this species were found in silver maple swamps (floodplain forests), a red oak and silver maple forest, along a lake margin, and in a tamarack ( Larix laricina (Du Roi) K. Koch) bog. Adults were found in leaf litter near vernal ponds, under drift material on a lake margin, and by treading Carex in a tamarack bog, and one individual was captured at an ultraviolet light.

Distribution in Canada and Alaska.

AK, NT, BC, AB, SK, MB, ON, QC, NB, NS ( Watrous 1980; Campbell and Davies 1991).