Nitidotachinus horni Campbell, 1973 Map 1

Material examined.

New Brunswick, Albert Co., Caledonia Gorge P.N.A. (Protected Natural Area), at Canada Creek, 45.7808°N, 64.7775°W, 4.VII.2011, R. P. Webster, cold, clear, and shaded rocky brook in mixed forest, in saturated moss (1, NBM). Carleton Co., Jackson Falls, Bell Forest, 46.2208°N, 67.7231°W, 2.VI.2005, R. P. Webster, mature hardwood forest, in litter on margin of cold spring-fed brook (1, RWC); Meduxnekeag Valley Nature Preserve, 46.1895°N, 67.6704°W, 13.VI.2010, 18.VI.2010, R. P. Webster, hardwood forest, margin of cold shaded spring-fed brook, under small rocks and in gravel (6, RWC).

Collection and habitat data.

Adults of this rarely collected species were found in seepage areas, under stones on a stream margin, an alder thicket, and forest litter (Campbell 1988). In New Brunswick, adults were collected from under small rocks, in gravel, or in litter and moss along the margins of cold, shaded, spring-fed brooks in hardwood forests. Adults were collected during June and July.

Distribution in Canada and Alaska.

ON, QC, NB, NS (Campbell 1973, 1988).