Chilopora americana Chilopora americana Tetralaucopora americana Parocyusa americana New species and distributional records of Aleocharinae (Coleoptera, Staphylinidae) from Ontario, Canada, with a checklist of recorded species Brunke, Adam J. Klimaszewski, Jan Dorval, Julie-Anne Bourdon, Caroline Paiero, Steven M. Marshall, Stephen A. ZooKeys 2012 186 119 206 http://species-id.net/wiki/Parocyusa_americana Casey, 1906 Casey 1906 Insecta Staphylinidae Parocyusa CoL Animalia Parocyusa americana Coleoptera 9 128 Arthropoda species americana   Chilopora americana Casey 1906: 306. Lectotype (female):USA, New York, Peekskill; 555, Type USNM 39734; Chilopora americanaCasey; our lectotype designation label, present designation (NMNH) [dissected].  Tetralaucopora americana(Casey); Moore and Legner 1975: 493  Parocyusa americana(Casey); Ashe in Newton et al. 2000: 362  Material examined. (Type material - see above). CANADA: ON:Chatham-Kent Co.,Tilbury, pitfall trap, 23.vi.1994, T. Savinski, 1 (DEBU); Huron Co.,Auburn, hedgerow, pitfall, 27.x.2010, A. Brunke, 1 (DEBU); Northumberland Co.,Peter's Woods PNR, 44°7'27"N, 78°2'21"W, dry streambed, under rock, 12.ix.2011, Brunke & Paiero, 1 (DEBU); Ottawa Division, Mer Bleue, 20.ix.1980, leg. R. Baranowski, 1 (MZLU); Simcoe Co.,Midhurst, Finlay Mills Rd., Willow Creek, 44°26'24"N, 79°43'48"W, splashing sandy bank, 13.vi.2010, A. & K. Brunke, 1 (DEBU).  Distribution. Canada: ON; USA: NY. Native  Maps 17-20. Distribution in Ontario of: 17 Parocyusa americana(Casey) 18 Parocyusa fuliginosa(Casey) 19 Brachyusa helenae(Casey) 20 Gnypeta helenaeCasey.  Comments. This is the first record of Parocyusa americanasince its description based on a female specimen collected from Peekskill, New York ( Casey 1906). This species is easily recognized to genus by its habitus and the only other known Nearctic species ( Parocyusa fuliginosa(Casey)) is darker, with a slightly shorter and more densely punctate pronotum, and has quadrate to slightly transverse antennomeres 8-10 (see Fig. 28 in Klimaszewski et al. 2011). To promote nomenclatural stability, we designate a lectotype for Parocyusa americanahere. Specimens of Parocyusa americanawere found on a stream bank and in a dry streambed under a rock. We expect Parocyusa americanato occur broadly over northeastern North America in habitats near running water.