Taxonomic Revision of the American Spider Genus Arachosia (Araneae: Anyphaenidae)

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Publisher :
ISBN 13 : 9781775576594
Total Pages : 105 pages
Book Rating : 4.5/5 (765 download)

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Book Synopsis Taxonomic Revision of the American Spider Genus Arachosia (Araneae: Anyphaenidae) by : Gonzalo D. Rubio

Download or read book Taxonomic Revision of the American Spider Genus Arachosia (Araneae: Anyphaenidae) written by Gonzalo D. Rubio and published by . This book was released on 2015 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Revision and Phylogenetic Analysis of the Spider Genus Philisca Simon (Araneae: Anyphaenidae, Amaurobioidinae)

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Publisher :
ISBN 13 : 9781869779948
Total Pages : 65 pages
Book Rating : 4.7/5 (799 download)

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Book Synopsis Revision and Phylogenetic Analysis of the Spider Genus Philisca Simon (Araneae: Anyphaenidae, Amaurobioidinae) by : Eduardo M. Soto

Download or read book Revision and Phylogenetic Analysis of the Spider Genus Philisca Simon (Araneae: Anyphaenidae, Amaurobioidinae) written by Eduardo M. Soto and published by . This book was released on 2012 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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). Cluilius chilensis Mello-Leitão is newly synonymized with P. accentifera Simon. The phylogenetic analysis resulted in P. puconensis Ramírez 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 (Ramírez), are grouped by the loss of spines on legs I and II. The second, formed by P. huapi Ramírez, P. ingens Berland, P. ornata Berland, P. accentifera Simon, P. atrata and four new species endemic to the Robinson Crusoe Island in the Juan Fernández Archipelago, have the male chelicerae, and in most cases also the endites, modified. In total, six species of Philisca are endemic to Juan Fernández, 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 Fernández islands.

A revision of the spider genus Selenops Latreille, 1819 (Arachnida, Araneae, Selenopidae) in North America, Central America and the Caribbean

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Publisher : PenSoft Publishers LTD
ISBN 13 : 954642594X
Total Pages : 188 pages
Book Rating : 4.5/5 (464 download)

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Book Synopsis A revision of the spider genus Selenops Latreille, 1819 (Arachnida, Araneae, Selenopidae) in North America, Central America and the Caribbean by : Sarah C. Crews

Download or read book A revision of the spider genus Selenops Latreille, 1819 (Arachnida, Araneae, Selenopidae) in North America, Central America and the Caribbean written by Sarah C. Crews and published by PenSoft Publishers LTD. This book was released on 2011-06-14 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: The spider genus Selenops occurs in both the Old World and New World subtropics and tropics and contains nearly half of the species in the family Selenopidae. These spiders are extremely flattened dorsoventrally and are amongst the fast-est animals in the world. Despite the large size of some species, these aforementioned characteristics can make them difficult to detect. In this monograph the species from North America, Central America and Caribbean Islands (excluding Cuban endemics) are revised. In total, 21 new species are described and 6 species are synonymized. The males of S. bani and S. marcanoi, and the females of S. phaselus and S. geraldinae are described for the first time. Almost all species are redescribed, with new illustrations, including the internal female copulatory organs, most of which are illustrated for the first time. New distributional records and a key to species are also provided.