title: Phylogenetic placement of the Pacific Northwest subterranean endemic diving beetleStygoporus oregonensisLarson & LaBonte (Dytiscidae, Hydroporinae).
abstract: Stygoporus oregonensisLarson & LaBonte is a little-known subterranean diving beetle, which, until recently, had not been collected since the type series was taken from a shallow well in western Oregon, USA, in 1984. Here we report the discovery of additional specimens collected from a nearby well in the Willamette Valley. Sequence data from four mitochondrial genes,wingless, and histone III placeStygoporusLarson & LaBonte in the predominantly Mediterranean subtribe Siettitiina of the Hydroporini. Morphological support for these results is discussed, and details of the collecting circumstances of the new specimens are presented. We argue that the biogeographic patterns of Nearctic Siettitiina highlight the likelihood of additional undiscovered subterranean dytiscids in North America.
authors.affiliation: Department of Integrative Biology, Oregon State University, Corvallis, Oregon, United States of America.
authors.forename: Kojun
authors.initials: K
authors.lastname: Kanda
authors.affiliation: Department of Integrative Biology, Oregon State University, Corvallis, Oregon, United States of America.
authors.forename: R Antonio
authors.initials: RA
authors.lastname: Gomez
authors.affiliation: Department of Integrative Biology, Oregon State University, Corvallis, Oregon, United States of America.
authors.forename: Richard
authors.initials: R
authors.lastname: Van Driesche
authors.affiliation: Department of Biology, University of New Mexico, Albuquerque, New Mexico, United States of America.
authors.forename: Kelly B
authors.initials: KB
authors.lastname: Miller
authors.affiliation: Department of Integrative Biology, Oregon State University, Corvallis, Oregon, United States of America.
authors.forename: David R
authors.initials: DR
authors.lastname: Maddison
keywords: Hydroporini; Nearctic; Oregon; Siettitiina; Stygobiont; aquatic Coleoptera; aquifer