Abstract
Two new species of the spider genus Cybaeus are described from the Chugoku district, western Honshu, Japan, under the names C. hibaensis and tottoriensis. These species are medium or slightly small in size and pale in color compared to other species of Japanese Cybaeus. Their distributions show allopatric pattern each other; the former is distributed in central part of the Chugoku district, and the latter in northeastern part.
