Otacilia tham spec. nov. and O. saszykaska spec. nov. from Laos, the first two cave-dwelling guardstone spiders (Arachnida: Araneae: Phrurolithidae)

Abstract

Two new species of the genus Otacilia Thorell 1897 are described from the Vang Vieng Karst in northwestern Laos: O. tham spec. nov., the first species of the entire family that lives in caves and is blind, i.e. has only non-functional remnants of the four lateral eyes, and O. saszykaska spec. nov., a cave-dwelling species with eight eyes, and posterior median eyes strongly reduced in size. A distribution map of E- and SEAsian genera of Phrurolithidae is provided.