Three new species of North American Nabidae are described: Hoplistoscelis confusa, n. sp., Nabis latior n. sp., and Pagasa lattini n. sp. A diagnosis, description, a dorsal and lateral color photograph, a pen and ink dorsal habitus illustration, drawings of male and/or female genitalia, and comments on their relationship with other species are given for each. Nabis mexicanus Remane is recorded from the United States for the first time and new U.S. state or Canadian province records are given for several species. Clarification of misidentifications since the 1988 North American nabid catalog are reported. A revised checklist of the North American Nabidae is provided, giving current generic and subgeneric combinations for 41 species.