The Eurasian nabid Himacerus apterus (Fabricius) is reported for the first time for North America. Several individuals have been collected between 1943 and 1989 in eastern Nova Scotia. Generic and specific diagnoses are given, and the genus is inserted in Slater and Baranowski’s (1978) key to the genera of North American Nabidae. The geographical distribution and bionomics of the species are briefly discussed.