A new species of Redudasys (Macrodasyida: Redudasyidae) isdescribed from Texas and Oregon, U.S.A. A single Texas specimen wasreported (but not formally described and named) in 2014 from an artesianoutflow in Spring Lake, San Marcos, Texas. The Texas specimen provided thefirst record of Redudasys from outside Brazil. Fifteen specimens were foundand studied in 2015 and 2016 from sand pockets among boulders in the LittleNestucca River, near Pacific City, Oregon. Redudasys neotemperatus n. sp. ismorphologically and genetically distinguishable from Redudasys forneriseKisielewski, 1987a, the only formally described species in the genus up untilnow, and morphologically distinguishable from ‘‘Redudasys sp.’’, an unnamedform reported by Garraffoni et al. in 2010 without genetic information. TheTexas and Oregon specimens agree well morphologically and genetically.