New species of Lucifotychus Park & Wagner, Pselaptrichus Brendel, and Tychus Leach (Coleoptera: Staphylinidae: Pslephinae) from Mt. Rainier National Park, including an annotated checklist of known Pselaphinae from Mt. Rainier

Three undescribed species within the genera Lucifotychus, Pselaptrichus, and Tychus were discovered from a total of 654 specimens of Pselaphinae collected from Mt. Rainier National Park and surrounding localities during the time period from 1995–2009. A checklist of additional Pselaphine species currently known from Mt. Rainier National Park is provided with comments about habitat associations and range extensions.