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...

Three new species of Hamataliwa Keyserling, 1887 from Xizang, China (Araneae, Oxyopidae)

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Three new species of Hamataliwa Keyserling, 1887 from Xizang, China (Araneae, Oxyopidae)

Abstract

Three new species of Hamataliwa Keyserling, 1887, collected from Xizang, China, are described: H. jinlini Wang & Mi, sp. nov. (♂♀), H. qomolangma Wang & Mi, sp. nov. (♂♀), and H. shufui Wang & Mi, sp. nov. (♂♀). The dissected bulb of the genus is shown for the first time. Diagnostic photos of the habitus and copulatory organs, as well as a map of the collecting localities of the type specimens for the new species, are provided. DNA barcodes of all new species were obtained for future reference.

Long C, Wang S, Zhang J, Wang C, Mi X (2026) Three new species of Hamataliwa Keyserling, 1887 from Xizang, China (Araneae, Oxyopidae). ZooKeys 1282: 371-385. https://doi.org/10.3897/zookeys.1282.187584