A Taxonomic Review of the Northwestern Nearctic Subgenus Pseudonomaretus Roeschke 1907, including Description of the New Species Scaphinotus hoodooensis (Coleoptera: Carabidae: Cychrini) from the Bitterroot Mountains of Montana

摘要

A new species in the cychrine genus Scaphinotus, subgenus Pseudonomaretus, S. hoodooensis, is described from the Bitterroot Mountains of western Montana (type locality: 0.5 miles N of Hoodoo Pass, Mineral County). A key is provided for identification of adults of all five species in the subgenus, and a lectotype is designated for Cychrus idahoensis Webb, a junior synonym of Scaphinotus merkelii (G Horn). Phylogenetic relationships with other subgenera of Scaphinotus are briefly discussed.