Tachinus addendus Horn, 1877

Webster, Reginald P., Sweeney, Jon D. & DeMerchant, Ian, 2012, New Staphylinidae (Coleoptera) records with new collection data from New Brunswick and eastern Canada: Tachyporinae, ZooKeys 186, pp. 55-82 : 60-62

Tachinus addendus Horn, 1877 Map 6

Material examined.

Additional New Brunswick records, Albert Co., Shepody N.W.A., Mary’s Point Section, 45.7260°N, 64.6640°W, 12.IX.2004, R. P. Webster, spruce forest, in decaying fleshy fungi (1, RWC); Caledonia Gorge P.N.A., near Turtle Creek, 45.8380°N, 64.8484°W, 3.VII.2011, R. P. Webster, old-growth sugar maple and yellow birch forest, in moose dung (1, NBM). Carleton Co., Meduxnekeag River Valley Nature Preserve, 46.1907°N, 67.6740°W, 23.VI.2006, 7.IX.2004, R. P. Webster, mature hardwood forest,in rotting mushrooms (8, NBM, RWC); Two Mile Brook Fen, 46.3702 °N, 67.6772°W, 4.VIII.2006, R. P. Webster, mixed forest, in gilled mushroom (1, NBM). Queens Co., Cranberry Lake P.N.A, (Protected Natural Area) 46.1125°N, 65.6075°W, 2.IX.2009, R. Webster & M.-A. Giguère, old red oak forest, in decaying gilled mushroom (1, AFC). Restigouche Co., Mount Carleton Provincial Park, Mt. Sagamook, 2000 ft. elev., 47.4112°N, 66.8599°W, 2.IX.2006, R. P. Webster, mixed fo rest, in decaying gilled mushroom (1, NBM); Jacquet River Gorge P.N.A., 47.8160°N, 66.0083°W, 14.VIII.2010, R. P. Webster, old eastern white cedar forest, in decaying mushrooms (1, NBM); Dionne Brook P.N.A., 47.9064°N, 68.3441°W, 23. VIII– 19.IX.2011, M. Roy & V. Webster, old-growth white spruce and balsam fir forest, Lindgren funnel trap (1, NBM). Saint John Co., Dipper Harbour, 45.1169°N, 66.3771°W, 15.V.2006, R. P. Webster, upper margin of sea beach, in decaying sea wrack under alders (1, RWC). York Co., Browns Mountain Fen, 45.8965°N, 67.6344°W, 5.VIII.2004, J. Edsall & R. Webster, mixed forest, in decaying fleshy fungi (2, NBM, RWC).

Collection and habitat data.

This species has been collected from dung, rotting mushrooms, deciduous leaf litter, and pine duff ( Campbell 1973). Most adults from New Brunswick were collected from decaying mushrooms in hardwood and mixed forests. One individual was collected from decaying sea wrack under alders ( Alnus sp.) on the upper margin of a sea beach, another was found in moose dung. Adults were collected during May, June, July, August, and September.

Distribution in Canada and Alaska.

MB, ON, QC, NB, NS ( Campbell 1973, 1988). Tachinus addendus was listed as occurring in New Brunswick by Majka et al. (2011) without any supporting references or data. Here, we provide the first documented records from New Brunswick.