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Issue: Vol. 3339 No. 1: 8 Jun. 2012
Type: Articles
Published: 2012-06-08
DOI: 10.11646/zootaxa.3339.1.3
Page range: 44–56
Abstract views: 59
PDF downloaded: 1

Arauchemus, a new spider genus of the Echemus group (Araneae: Gnaphosidae: Echeminae) from Araucaria Forest areas in southern Brazil, with notes on habitat preferences and phenology

Museu de Ciências Naturais, Fundação Zoobotânica do Rio Grande do Sul, Rua Dr. Salvador França, 1427, Porto Alegre, RS, Brazil
Laboratório Especial de Coleções Zoológicas, Instituto Butantan. Av. Vital Brasil, 1500, 05503-900, São Paulo, SP, Brazil
Araneae Neotropical region taxonomy ecology phenology new species

Abstract

The new genus Arauchemus is proposed to include two new species from southern Brazil. Arauchemus graudo sp. nov. andArauchemus miudo sp. nov. are described from São Francisco de Paula in the state of Rio Grande do Sul, Brazil. Both sympat-ric species were sampled along 20 months at three different habitats: primary and secondary forests and at Pinus silvicultures.A. graudo sp. nov. and A. miudo sp. nov. presented larger numbers at primary and secondary forests respectively. Both speciespresented stenochronic male activity patterns with male activity peak between the end of summer and beginning of autumn. Morphometric data on male cephalothorax indicate large size overlapping of both species.

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