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...

On Some Rare Mygalomorph from Ecuador, with the Description of 16 New Species in Five Families (Mygalomorphae: Actinopodidae, Barychelidae, Halonoproctidae, Idiopidae, and Theraphosidae)

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On Some Rare Mygalomorph from Ecuador, with the Description of 16 New Species in Five Families (Mygalomorphae: Actinopodidae, Barychelidae, Halonoproctidae, Idiopidae, and Theraphosidae)

Abstract

This study on Mygalomorphs from Ecuador revealed an amazing unknown diversity, including the first record of the families Actinopodidae and Halonoproctidae. Here, 16 new species and one new genus are described in five families: in Actinopodidae, Actinopus saraguro n. sp. (♀); in Barychelidae, Paracenobiopelma vesca n. sp. (♀), Strophaeus pacificanus n. sp. (♀), S. real n. sp. (♀), S. elongata n. sp. (♂♀), S. josefita n. sp. (♂♀), S. peronii n. sp. (♂♀), S. kaiae n. sp. (♀), S. subterraneus n. sp. (♂), S. spiculum n. sp. (♂), and S. kawsay n. sp. (♀); in Halonoproctidae, Ummidia pupulae n. sp. (♂); in Idiopidae, Idiops clepsydra n. sp. (♀); and in Theraphosidae, Pululahua gen. n., Pululahua kunukyaku gen. n., n. sp. (♂♀), and Pululahua winku gen. n., n. sp. (♂♀); and Thalerommata yasuni n. sp. (♂). Furthermore, images of the type specimens of Actinopus nattereri (Doleschall, 1871) and Actinopus piceus (Ausserer, 1871) are presented. Finally, the synonymy of Idiops fulvipes under Idiops argus is rejected.

Dupérré, N., & Tapia, E. (2025). On Some Rare Mygalomorph from Ecuador, with the Description of 16 New Species in Five Families (Mygalomorphae: Actinopodidae, Barychelidae, Halonoproctidae, Idiopidae, and Theraphosidae). Taxonomy, 5(3), 35. https://doi.org/10.3390/taxonomy5030035