Discovery of Oxyptila atomaria (Araneae: Thomisidae) from Japan

Abstract

A soil-dwelling crab spider, Oxyptila atomaria (Panzer 1801) (Araneae: Thomisidae), is newly recorded from Japan based on specimens recently collected in Hokkaido mainly by pit fall trapping. A description of the spider is presented with illustrations of its female genitalia and male palpal organ. Although this species is widely distributed in northern Eurasia from Europe to Siberia, Sakhalin, Korea and Japan, it seems much rarer in the eastern part.