Abstract
Two new species of sac spiders of the family Clubionidae are described from Japan under the names Clubiona ogatai sp. nov. (from Aichi Pref.) and C. iharai sp. nov. (from Hiroshima Pref.). The male of the crab spider, Xysticus transversomaculatus BÖSENBERG et STRAND, 1906, is described for the first time. On the basis of the male characteristics, the species is transferred from the species group of Xysticus luctans to that of X. locuples.
