Sphedanolestes albipilosus (Hemiptera: Heteroptera: Reduviidae), a new harpactorine species from the Ryukyus and Taiwan

A new harpactorine assassin bug, Sphedanolestes albipilosus, is described on the basis of fresh specimens collected from Ishigaki-jima and Iriomote-jima Islands of the Ryukyu Islands, Japan, and from the Island of Taiwan. This species differs from its closest relative, S. subtilis (Jakovlev, 1893) known from mainland China, in having a smaller body, the fourth antennal segment distinctly longer than the third, and a dark longitudinal stripe on each side of the abdomen. Habitat and adult season of this species are notably limited in the Ryukyu Islands.