Molecular and morphological evidence for a new genus of small trapdoor spiders from arid Western Australia (Araneae:Mygalomorphae:Nemesiidae:Anaminae)
C S I R O Publishing
Place of Publication
School of Science
The trapdoor spider family Nemesiidae comprises 14 genera in Australia, the majority of which are included in the subfamily Anaminae. Here we provide evidence from a multigene molecular analysis of most Australian genera of Anaminae for a previously unrecognised clade that also differs from its sister-genus, Aname L. Koch, by the lack of a prominent asetose ventral depression on the pedipalpal tibia and the medium-sized mating spur on tibia I of males. This depression is a characteristic of all species of Aname examined to date, and represents a newly recognised character system in the subfamily. The new genus, named Hesperonatalius, is represented by three new species - H. maxwelli, sp. nov., H. harrietae, sp. nov. and H. langlandsi, sp. nov. - all from arid Western Australia.