Cladistic reanalysis and historical biogeography of the genus Lycinus Thorell, 1894 (Araneae: Mygalomorphae: Nemesiidae) with description of two new species from western Argentina

FERRETTI NELSON

ZOOLOGICAL STUDIES

ACAD SINICA INST ZOOLOGY

Lugar: Taiwan; Año: 2015 vol. 51 p. 1 - 15

1021-5506

The genus Lycinus includes 10 species, one from Argentina, eight from Chile and one from Brazil. Two new species from western Argentina are described and some data on natural history are presented. A cladistic reanalysis with the newly described species are carried out and a reconstruction of ancestral areas and primary Brooks Parsimony Analysis were performed. The origins of the main groups of Lycinus are also discussed in that light. Lycinus lagigliai sp. nov. and L. nevadoensis sp. nov. are described. The distribution of these species comprised western Argentina at Mendoza province. The cladistic reanalysis showed Lycinus as monophyletic supported only by the synapomorphy of dorsal spines on male palpal tibia. The tree topology was: (L. epipiptus, L. domeyko ((L. longipes, L. nevadoensis sp. nov.) (L. portoseguro, L. lagigliai sp. nov.)) (L. caldera (L. gajardoi, L. choros)) (L. tofo, L. quilicura)). The biogeographical analysis showed a close relationship of the species from the Andean and the South American Transition zone. The Reconstruction of Ancestral Areas recognized four vicariant nodes. A hitherto two unknown Lycinus species are recognized and formally described, along with a cladistic reanalysis and historical biogeographical hypotheses.