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...

First record of a crab spider Xysticus crispabilis Song & Gao, 1996 (Araneae: Thomisidae) from Japan with the first description of a female

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First record of a crab spider Xysticus crispabilis Song & Gao, 1996 (Araneae: Thomisidae) from Japan with the first description of a female

ABSTRACT

A crab spider species, Xysticus crispabilis Song & Gao, 1996 (Araneae: Thomisidae), originally described from Anhui, China based on a single male specimen, is newly recorded from Japan. This study represents the second specimen-based record of the species since its original description. Detailed redescriptions of genital morphology, coloration and markings of the male are provided based on fresh material. The previously unknown female is described for the first time. In addition, genital images of the holotype, DNA barcoding data, preliminary molecular phylogeny, and ecological notes are presented.
Suzuki, Y., & Lin, Y. (2026). First record of a crab spider Xysticus crispabilis Song & Gao, 1996 (Araneae: Thomisidae) from Japan with the first description of a female. Journal of Asia-Pacific Biodiversity. https://doi.org/10.1016/j.japb.2026.03.005