The eight known species of Ctenidae from temperate zone North America are diagnosed and described. The type locality of Ctenuis minimus F. 0. P.-Cambridge is undetermined beyond "North America." The affiliation of Titiotus californicus Simon is discussed but remains uncertain. Two new species of Ctenus, C. exlineae from Arkansas and C. valverdiensis from Texas, and two new species of Leptoctenus, L. gertschi and L. sonoraensis, both from Sonora, Mexico, are described.