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...

A new species of Filistatinella Gertsch & Ivie, 1936 (Araneae: Filistatidae) from Sonora, Mexico

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A new species of Filistatinella Gertsch & Ivie, 1936 (Araneae: Filistatidae) from Sonora, Mexico

ABSTRACT 

A   new spider of the genus Filistatinella (Filistatidae) is described from Hermosillo, Sonora,  Mexico.  This new species, F. bacanora sp. nov., is described based on both sexes and fills a distribution gap for the genus in northwestern Mexico.

Chamé-Vázquez, D., Gómez-Moreno, K. G., & Jiménez, M.-L. (2026). Una nueva especie de Filistatinella Gertsch & Ivie, 1936 (Araneae: Filistatidae) de Sonora, México. ACTA ZOOLÓGICA MEXICANA (N.S.), 42(1), 1–7. https://doi.org/10.21829/azm.2026.4212850