Abstract
Two salticid spiders of Japan, Harmochirus kochiensis and Marpissa ibarakiensis, described by BOHDANOWICZ and PRÓSZYNSKI (1987) are revised and redescribed on the basis of many specimens newly obtained. The male of H. kochiensis is described for the first time. Harmochirus kochiensis closely resembles H. pullus (BÖSENBERG et STRAND, 1906), and Marpissa ibarakiensis closely resembles M. dersuuzalai LOGUNOV et WESOLOWSKA, 1992, but both can be distinguished from the others by the structure of the copulatory organ, respectively.