Broad-Scale Climatic Gradients Drive Multiple Facets of Scorpion Beta Diversity in Northeastern Brazil

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  Broad-Scale Climatic Gradients Drive Multiple Facets of Scorpion Beta Diversity in Northeastern Brazil ABSTRACT Aim Beta diversity analyses clarify mechanisms structuring ecological communities, but their multidimensional facets remain poorly explored in arthropods. Here, we quantified taxonomic, phylogenetic, and functional beta diversity in scorpions, partitioned these facets into species replacement and richness differences, and evaluated the relative importance of spatial structure and environmental conditions in driving community assembly. Location Northeastern Brazil, South America. Taxon Scorpions (Arachnida: Scorpiones). Methods Taxonomic beta diversity was estimated using species presence across 70 sites in northeastern Brazil. Phylogenetic turnover was calculated from a multi-locus molecular tree, and functional beta diversity was derived from morphometric and ecological traits. All beta diversity facets were decomposed into replacement and richness-difference component...

A new species of the genus Allomicythus, with a first record and the description of the male of Echemus viveki Gajbe, 1989 (Araneae, Gnaphosidae) from China

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A new species of the genus Allomicythus, with a first record and the description of the male of Echemus viveki Gajbe, 1989 (Araneae, Gnaphosidae) from China

Abstract

Two species of the spider family Gnaphosidae are reported from China. A new species of the genus Allomicythus Ono, 2009 is described from Fujian province, Allomicythus youzi sp. nov. (♂). The genus Echemus Simon, 1878 is recorded for the first time from China. The male of Echemus viveki Gajbe, 1989 is described for the first time and the female is redescribed. Detailed morphological descriptions, photographs, SEMs of the body and genitalia, and a distribution map of these two species are provided.

Jiang, Z., Ning, X., Yao, Y., Wang, Z. & Liu, K. (2025) A new species of the genus Allomicythus, with a first record and the description of the male of Echemus viveki Gajbe, 1989 (Araneae, Gnaphosidae) from China. Zootaxa, 5646 (1), 115–123. https://doi.org/10.11646/zootaxa.5646.1.6