|Publication Type:||Journal Article|
|Year of Publication:||2003|
|Journal:||Bulletin of the American Museum of Natural History|
A cladistic phylogenetic analysis at generic level of the subfamily Amaurobioidinae is presented. The analysis is based on a dataset of 93 representative species scored for one behavioral and 199 morphological characters. Tree searches were made under equal and implied weights according to homoplasy, and the results were compared in terms of sensitivity to jackknife resampling. Mildest weighting functions produced trees more robust to resampling, and those results were selected as the working phylogenetic hypotheses. Groups of weak support as identified by jackknifing and Bremer indices are in general those that vary in resolution with different character-weighting schemes.
The genus Josa Keyserling, distinguished by a femoral apophysis on the male palp, is extremely diverse in Andean cloud forests and tropical America. It is one of the better supported groups of the analysis. Anyphaena keyserlingi L. Koch, Gayenna andesiana Berland, Gayenna simoni Berland, Gayennella riveti Berland, Haptisus nigrifrons Simon, Haptisus analis Simon, Haptisus maurus Simon, Olbophthalmus lojensis Berland, Olbus personatus Simon, Olbus gounellei Simon, Tetromma luteum Keyserling, and Tomopisthes chazaliae Simon are transferred to Josa. The male of Josa riveti (Berland) and one species are newly described. The following names are newly synonymized: Cluilius Simon, with Amaurobioides O.P.- Cambridge; Schiapellia Mello-Leitao, with Axyracrus Simon; Schiapellia gerschmanni Mello Leitão and Amaurobioides boydi Forster, with Axyracrus elegans Simon; Tomopisthes magel- lanicus Simon and Gayenna strigosa Tullgren, with Clubiona (now Negayan) paduana Karsch; Tetromma Keyserling (preoccupied), Haptisus Simon, Olbophthalmus Simon, and Gayennella Berland, with Josa Keyserling; Anyphaena pilosa Keyserling and Gayenna riveti Berland, with Tetromma (now Josa) luteum Keyserling; Pelayo insignis Banks, with Haptisus (now Josa) nigrifrons Simon; Samuza Keyserling, Abuzaida Keyserling, and Gayennina Gertsch, with Arachosia O.P.-Cambridge; Tomopisthes tripunctatus Mello-Leitão, with Samuza (now Arachosia) praesignis Keyserling; Oxysoma ramboi Mello-Leitao, with Arachosia honesta Keyserling; Sanogasta intermedia Mello-Leitao, with Anyphaena (now Sanogasta) maculatipes Keyserling; Gayenna monticola Chamberlin, with Gayenna alticola Simon; Clubiona sternalis Nicolet, Anyphaena ignota Keyserling, Gayenna affinis Tullgren, Gayenna dubia Tullgren, Tomopisthes conspersus Simon, Tomopisthes modestus Simon, Tomopisthes taeniatus Simon, Gayenna skottsbergi Berland, and Tomopisthes injucundus Simon, with Clubiona (now Sanogasta) maculosa Nicolet; Tomopisthes kraepelini Simon, with Gayenna approximata Tullgren; Liparotoma Simon, with Philisca Simon; Philisca navarinensis Tullgren, with Philisca hahni Simon; Heteromma Karsch (preoccupied), with Tomopisthes Simon; Tomopisthes im- manis Simon, Heteromma fuegiana Karsch, Philisca sica Strand, and Nonianus argentinus Mello-Leitao, with Clubiona (now Tomopisthes) horrenda Nicolet; Gayenna chilensis Tullgren, with Clubiona (now Tomopisthes) pusilla Nicolet; Gayenna stellata Simon, with Gayenna (now Araiya) coccinea Simon; Oxysoma punctipes Nicolet, Oxysoma aurata Nicolet, Oxysoma longipes Nicolet, Oxysoma lineata Nicolet, and Aporatea valdiviensis Simon, with Oxysoma punctatum Nicolet.