Phylogenetic placement of the Pacific Northwest subterranean endemic diving beetle Stygoporus oregonensis Larson & LaBonte (Dytiscidae, Hydroporinae)
Stygoporus oregonensis Larson & LaBonte is a little-known subterranean diving beetle, which, until recently, had not been collected since the type Used Goal Mask 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.Sequ