Microedus austinianus LeConte, 1874

Webster, Reginald P., Sweeney, Jon D. & DeMerchant, Ian, 2012, New Staphylinidae (Coleoptera) records with new collection data from New Brunswick, Canada: Omaliinae, Micropeplinae, Phloeocharinae, Olisthaerinae, and Habrocerinae, ZooKeys 186, pp. 7-29 : 11

Microedus austinianus LeConte, 1874 Map 7

Material examined.

New Brunswick, Albert Co., Caledonia Gorge P.N.A. at Caledonia Creek, 45.7935°N, 64.7760°W, 1.VII.2011, R. P. Webster, shaded, rocky, cold, clear brook, splashing gravel (4, NBM, RWC). Madawaska Co., Gagné Brook at First Lake, 47.6077°N, 68.2534°W, 23.VI.2010, M. Turgeon & R. Webster, northern hardwood forest, shaded brook among gravel on gravel bar, splashing and turning pebbles (3 ♂, 1 ♀, NBM, RWC); Jalbert Brook, 262 m elev., 47.6470°N, 68.3026°W, 23.VI.2010, R. P. Webster, old growth mixed forest, shaded brook, in gravel on gravel bar (3 ♂, 2 ♀, NBM, RWC). Restigouche Co., Jacquet River Gorge P.N.A., 47.8010°N, 66.0963°W, 14.VI.2009, R. P. Webster, cold shaded brook margin, in fine gravel (1 ♂, 2 ♀, NBM, RWC); 1.5 km S of Quebec border, 47.9058°N, 68.1505°W, 22.VI.2010, R. P. Webster, boreal forest, small cold shaded brook, splashing gravel on gravel bar (6, NBM, RWC); Mount Atkinson, 447 m elev., 47.8192°N, 68.2618°W, 21.VII.2010, R. P. Webster, boreal forest, small (cold spring-fed) shaded brook with mossy margin, in gravel (1, RWC); Kedgwick Forks, 47.9085°N, 67.9057°W, 22.VI.2010, R. P. Webster, on exposed rocks in middle of river (1 ♀, NBM).

Collection and habitat data.

In New Brunswick, this species was usually found among gravel on small, shaded, gravel bars or gravel margins of cold shaded brooks. Adults were collected during June and July.

Distribution in Canada and Alaska.

AK, YK, BC, AB, QC, NB, NS ( Campbell and Davies 1991; CNC specimens).