Two new species of the families liphistiidae and thomisidae (Araneae) from the Ryukyu Islands, Southwest Japan

Abstract

Two new species of the spider families Liphistiidae and Thomisidae are described from the Ryukyu Islands (Nansei-shotô), Southwest Japan, under the names Heptathela kanenoi sp. nov. (from Tokunoshima Island, the Amami Islands) and Tmarus komi sp. nov. (from Iriomotejima Island, the Yaeyama Islands). A close relationship is recognized between the new Heptathela spider and H. amamiensis HAUPT, 1983, known from Amami-ôshima Island. The new species of Tmarus is peculiar in having legs without developed spines and independently stands in the Japanese species of the genus.