Remarkable micro-endemism and high congeneric richness: eight new cave-restricted species of Pseudochthonius Balzan, 1892 (Pseudoscorpiones, Chthoniidae) from the Brazilian semi-arid

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  Remarkable micro-endemism and high congeneric richness: eight new cave-restricted species of Pseudochthonius Balzan, 1892 (Pseudoscorpiones, Chthoniidae) from the Brazilian semi-arid Abstract Eight new species of pseudoscorpions belonging to the genus Pseudochthonius Balzan, 1892 are described from the semi-arid region of Brazil. Comprehensive morphological descriptions, diagnostic characters, detailed illustrations, and ecological remarks of the habitats are provided for Pseudochthonius celestialis sp. nov., P. caritas sp. nov., P. patientia sp. nov., P. temperantia sp. nov., P. diligentia sp. nov., P. castitas sp. nov., P. humilitas sp. nov., and P. benignitas sp. nov. In addition, we present a brief discussion of the potential factors underlying the remarkable congeneric species richness observed in this geographically restricted region, as well as the principal threats faced by these species. These findings underscore the importance of conserving caves in order to pr...

First Record of Predation on a Regal Black-striped Snake, Coniophanes imperialis (Serpentes: Dipsadidae), by a Mexican Red-rump Tarantula, Tliltocatl vagans (Araneae: Theraphosidae), in Quintana Roo, Mexico

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First Record of Predation on a Regal Black-striped Snake, Coniophanes imperialis (Serpentes: Dipsadidae), by a Mexican Red-rump Tarantula, Tliltocatl vagans (Araneae: Theraphosidae), in Quintana Roo, Mexico

Abstract

We report the first documented predation event by the Mexican Red Rump Tarantula (Tliltocatl vagans) upon a Regal Black-striped Snake (Coniophanes imperialis), during the night on 27 September 2025, outside a house located on the outskirts of Bacalar city, Quintana Roo, Mexico.


Cedeño-Vázquez, José & Beutelspacher-García, Pablo & Lucio Palacio, César. (2026). First record of predation on a regal black-striped snake Coniophanes imperialis (Serpentes: Dipsadidae) by a Mexican red rump tarantula Tliltocatl vagans (Araneae: Theraphosidae) in Quintana Roo, Mexico. Revista Latinoamericana de Herpetología. 09. 477-481. 10.22201/fc.25942158e.2026.2.1603.