Abstract
Several taxonomic issues in the moth families Erebidae and Noctuidae are addressed for Northwestern North America. Drasteria parallelaCrabo & Mustelin andCycnia oregonensis tristisCrabo in the Erebidae and Eudryas brevipennis bonneville Shepard & Crabo, Resapamea diluvius Crabo, Resapamea angelika Crabo, Resapamea mammuthus Crabo, Fishia nigrescens Hammond & Crabo, and Xestia perquiritata orcaCrabo & Hammond in the Noctuidae are described as new. The following new synonyms are proposed: Chytolita petrealis Grote with Herminea morbidalis Guenée; Gortyna columbia Barnes & Benjamin and Gortyna ximena Barnes & Benjamin with Gortyna obliqua Harvey; and Hydroecia pallescens Smith with Hydroecia medialis Smith. The type locality of Gortyna intermedia Barnes & Benjamin is restricted to Lundbreck, Municipality of Crowsnest Pass, Alberta, Canada.