Abstract
Description of Sybota compagnuccii a new spider species from Patagonia, Argentina (Araneae, Uloboridae). Sybota compagnuccii new species is described for the Argentinian Patagonia (Neuquen, Rio Negro and Chubut Provinces). Relationships with the previously described Sybota species are discussed.
Highlights
The uloborid spider genus Sybota Simon 1892, comprises five species: two from Central and Southern Chile, S. abdominalis (Nicolet) and S. osornis Opell and three from Argentina, S. rana (Mello-Leitão), S. mendozae Opell and S. atlantica Grismado (Platnick, 2007)
One of the most remarkable features of the genus Sybota is the abdominal caudal projection that extends beyond the spinnerets (Fig. 4; Opell 1979, figs. 51, 102, 110, 116; Grismado 2001, figs. 1, 3)
In a previous paper (Grismado, 2001), I pro-posed a monophyletic group within the genus Sybota that comprises the Argentine species, all of them share the following putative synapo-morphies: long cephalotorax, anterior median eyes on a prominent tubercle, females with long sperm ducts and males with the embolus longer than those of the Chilean species
Summary
The uloborid spider genus Sybota Simon 1892, comprises five species: two from Central and Southern Chile, S. abdominalis (Nicolet) and S. osornis Opell and three from Argentina, S. rana (Mello-Leitão), S. mendozae Opell and S. atlantica Grismado (Platnick, 2007). In a previous paper (Grismado, 2001), I pro-posed a monophyletic group within the genus Sybota that comprises the Argentine species, all of them share the following putative synapo-morphies: long cephalotorax, anterior median eyes on a prominent tubercle, females with long sperm ducts and males (at least in S. atlantica) with the embolus longer than those of the Chilean species In this contribution I describe a new species, S. compagnuccii, from the Andean forests of Neuquén, Río Negro and Chubut provinces, in the Argentinian Patagonia, that lacks the synapomorphies above mentioned, resembling more to the chilean than to the argentinian mem-bers of the genus
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