Scopaeus minutus Erichson, 1840

Brunke, Adam J. & Marshall, Stephen A., 2011, Contributions to the faunistics and bionomics of Staphylinidae (Coleoptera) in northeastern North America: discoveries made through study of the University of Guelph Insect Collection, Ontario, Canada, ZooKeys 75, pp. 29-68 : 40

Scopaeus minutus Erichson, 1840

Materials.

CANADA: ON: Huron Co., Auburn, Hullett-McKillop Rd. nr. Limekiln Line, 43.742, -81.514, soybean field, pitfall, 23-VI-2010 (6), 7-VII-2010 (6), 21-VII-2010 (4), 1-IX-2010 (1), A. Brunke; Benmiller, Sharpes Creek Line, 43.691, -81.608, hedgerow nr. creek, canopy trap in buckthorn, 22-VI-2009 (1) A. Brunke; Brucefield, London Rd. nr. Centennial Rd., 43.509, -81.516, soybean field, canopy trap, 22-VI-2009 (1) A. Brunke; Waterloo Reg., Blair, Dickie Settlement Rd. nr. WhistleBear golf course, 43.373, -80.400, soybean field, pitfall, 23-VI-2009 (1), 7-VII-2009 (2), 21-VII-2009 (1), A. Brunke; Blair, Fountain St. S. nr Speed River, 43.391, -80.373, soybean field, pitfall, 23-VI-2009 (3),7-VII-2009 (1) A. Brunke; Blair, Whistlebare Rd. and Township Rd.1, 43.372, -80.362, soybean field, pitfall, 13-VII-2010 (4), A. Brunke; Blair, Whistlebare Rd. and Township Rd. 1, 43.367, -80.358, soybean field, pitfall trap, 15-VI-2010 (3), 27-VII-2010 (1), A. Brunke. Wellington Co., Eramosa, Wellington County Rds. 124 and 29, 43.615, -80.215, soybean field, pitfall, 13-VII-2010 (2); Guelph, Victoria Rd. and Conservation Line, 43.580, -80.275, soybean field, pitfall trap, 23-VI-2009 (23), 7-VII-2009 (4), 21-VII-2009 (11), 4-VIII-2009 (1), 18-VIII-2009 (2), 1-IX-2009 (1), 15-IX-2009 (4); Guelph, Victoria Rd. and Conservation Line, 43.580, -80.275, soybean field, vacuum sampled from soybean foliage at 8pm, 16-VII-2009.

Diagnosis.

The diverse genus Scopaeus is greatly in need of revision in North America and thus, Scopaeus minutus can only be recognized currently by the form of the aedeagus (Fig. 17).

This exotic Palaearctic species was first reported from North America by Frisch et al. (2002) from Montreal, Québec, Canada; however, no specimen data were provided. Herein we confirm its presence in North America and newly report it from Ontario based on numerous voucher specimens collected from 2009-2010 (Map 16). It is widely distributed in the Palaearctic region ( Smetana in Löbl and Smetana 2004). The North American material was collected in passive traps in soybean fields and woodlot edges. Scopaeus minutus is less hygrophilus than others of the genus ( Frisch et al. 2002) and is typically found in habitats undergoing early stages of succession ( Boháč 1985).