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Issue: Vol. 2057 No. 1: 30 Mar. 2009
Type: Article
Published: 2009-03-30
DOI: 10.11646/zootaxa.2057.1.4
Page range: 63–68
Abstract views: 58
PDF downloaded: 2

A new genus of Stygninae from a relictual rainforest in Ceará, northeastern Brazil (Opiliones, Laniatores, Stygnidae)

Departamento de Invertebrados, Museu Nacional/UFRJ, Quinta da Boa Vista, São Cristóvão, 20.940-040, Rio de Janeiro - RJ – BRAZIL
Opiliones Arachnida harvestmen Grassatores Neotropics Caatinga montane forests

Abstract

Ricstygnus quineti gen. nov. sp. nov. (Stygninae) is described from a "brejo de altitude" in Ceará state, northeastern Brazil, this being the first record of the family Stygnidae from the state. The new genus is characterized by the paired scutal armature in the form of acuminate tubercles increasing in size from area III to posterior margin of scutum, free tergite I with a pair of robust acuminate spiniform apophyses that are by far the stoutest of those on the dorsum, subtrapezoid scutum widest posteriorly with long carapace, and several unique genital features, as for example the presence of dorso-basal hollow in ventral plate containing a multiply folded haematodocha.

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