@ARTICLE{TreeBASE2Ref20589, author = {Eduardo Maria Soto and Martin Javier Ramirez}, title = {Revision and phylogenetic analysis of the spider genus Philisca Simon (Araneae: Anyphaenidae, Amaurobioidinae)}, year = {2012}, keywords = {South America, Robison Crusoe, Juan Fern?ndez, island biogeography, systematics, cladistics.}, doi = {}, url = {http://}, pmid = {}, journal = {Zootaxa}, volume = {}, number = {}, pages = {}, abstract = {We review the spider genus Philisca Simon, an endemic of the southern forests in Chile and Argentina, and present a phylogenetic analysis including 15 species, of which five are newly described (P. atrata, P. robinson, P. viernes, P. pizarroi and P. robusta), together with other 98 representatives of the family Anyphaenidae. Four species names are considered nomina dubia (Clubiona gayi Nicolet, Drassus mirandus Nicolet, Clubiona altiformis Nicolet, P. obscura Simon). Philisca chilensis Mello-Leit?o is a newly synonymized with P. accentifera Simon. The phylogenetic analysis resulted in P. puconensis Ram?rez branching off basally in the genus, because of its numerous leg spines and unmodified male chelicerae, all plesiomorphic for the group; the remaining species form two clear groups. The first one, formed by P. hahni Simon, P. tripunctata (Nicolet), P. amoena (Simon), P. hyadesi (Simon) and P. doilu (Ram?rez), are grouped by the loss of spines on legs I and II. The second, formed by P. huapi Ram?rez, P. ingens Berland, P. ornata Berland, P. accentifera Simon, P. atrata and four new species endemic to the Robinson Crusoe Island in the Juan Fern?ndez Archipelago, have the male chelicerae, and in most cases also the endites, modified. In total, six species of Philisca are endemic to Juan Fern?ndez, but our dataset is not conclusive for the distinction of alternative colonization scenarios. We analyze the evolution of leg macrosetae, and show two independent instances of reduction of spination, one on the continent and another on the Juan Fern?ndez islands.} }

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