The male of Aeolocoelotes cornutus (Nishikawa, 2009) (Araneae, Agelenidae) n. comb., transferred from Coelotes is described for the first time based on the specimen collected from the adjacent area of its type locality in Kochi Prefecture, Japan. The shape of the male palp of this species is extremely unique, and similar to that of A. mohrii (Nishikawa, 2009). It became clear that A. cornutus is closely related to A. mohrii based on the morphological characteristics of both sexes and its genetic data. The differences of the genital organs between these two species are presented. The mitochondrial cytochrome c oxidase subunit I (mt-COI) partial sequences of the species have been also documented for future use.