Abstract
Although two species of the spider genus Zygiella, Z. dispar (Kulczynski 1885) and Z. montata (C. L. Koch 1834) have been recorded from Japan, I recognized only one species of the genus after the examination of many spider specimens from Japan. Judging from the figures made by Levi (1974) and the specimens from Canada, I determined the Japanese specimens as Zygiella dispar.
