Two new Brazilian species of Loxosceles Heinecken & Lowe, 1832 with remarks on amazonica and rufescens groups (Araneae, Sicariidae)

被引：16

作者：

Fukushima, Caroline Sayuri ^{[1
]}

Goncalves de Andrade, Rute Maria ^{[2
]}

Bertani, Rogerio ^{[1
]}

机构：

[1] Inst Butantan, Lab Especial Ecol & Evolucao, Av Vital Brazil 1500, BR-05503900 Sao Paulo, SP, Brazil

[2] Fundacao Museu Homem Amer, Lab Vestigios Organ, Ctr Cultural Sergio Motta S-N,Caixa Postal 2, BR-64770000 Sao Raimundo Nonato, Piaui, Brazil

来源：

ZOOKEYS | 2017年 / 667期

关键词：

Alagoas; Brown recluse spider; Caatinga; Cave; Rio Grande do Norte; PERNAMBUCO;

D O I：

10.3897/zookeys.667.11369

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

The genus Loxosceles Heinecken & Lowe, 1832 has 91 representatives in the New World. Despite medical relevancy, the taxonomy of the genus is poorly understood. South American Loxosceles were divided into four groups of species: laeta, spadicea, gaucho and amazonica; this last one has a single species, Loxosceles amazonica Gertsch, 1967. More recently, the natural occurrence of L. amazonica in the New World has been questioned, due to the strong morphological resemblance and close phylogenetic relationship with Old World species, mainly with Loxosceles rufescens (Dufour, 1820). Herein, L. amazonica is rediagnosed and its morphological variation and natural distribution discussed. Two new species closely related to it from northeastern Brazil are also described, Loxosceles willianilsoni sp. n., from the state of Rio Grande do Norte, and Loxosceles muriciensis sp. n., from the state of Alagoas. The relationships of these new species with L. amazonica and L. rufescens are discussed.

引用

页码：67 / 94

页数：28

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