Two poorly known species of the spider genus Ambanus (Arachnida: Araneae: Amaurobiidae) in Korea

Two poorly known spider species of the genus Ambanus from Korea are revised with detailed illustrations, leg spination, trichobothrium patterns, and SEM photographs. Ambanus lunatus (Paik, 1976), previously misidentified in Korea as Ambanus spp., is redescribed with the first description of the male. The type species of the monotypic genus Alloclubionoides Paik, 1992 (Clubionidae), Alloclubionoides coreana, described only from the male holotype, is transferred to Ambanus with the first description. Furthermore, the female paratype of Coelotes paikwunensis and female specimens described as A. lunatus in Korea are in fact the females of A. coreana.