Cladistic reanalysis and historical biogeography of the genus LycinusThorell 1894 (Araneae: Mygalomorphae: Nemesiidae) with description of two newspecies from western Argentina

摘要

Background: The genus includes ten species, one from Argentina,eight from Chile, and one from Brazil. Two new species from western Argentina aredescribed, and some data on natural history are presented. A cladistic reanalysis with thenewly described species is carried out, and a reconstruction of ancestral areas andprimary Brooks Parsimony Analysis are performed. The origins of the main groups of arealso discussed in that light.