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...

Fourteen new species and notes on the genera Amauropelma Raven, Stumkat & Gray, 2001 and Bowie Jäger, 2022 (Arachnida: Araneae: Ctenidae) from Southeast Asia

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Fourteen new species and notes on the genera Amauropelma Raven, Stumkat & Gray, 2001 and Bowie Jäger, 2022 (Arachnida: Araneae: Ctenidae) from Southeast Asia

Abstract

Material of the spider family Ctenidae from Southeast Asia is investigated. Ten new species of the genus Amauropelma Raven, Stumkat & Gray, 2001 are described: A. grasshoffi sp. nov. (first record from the Philippines; male), A. kihit sp. nov. (Laos; female), A. kochang sp. nov. (Thailand; female), A. lombok sp. nov. (Indonesia; male, female), A. maimoun sp. nov. (Laos; female), A. phamom sp. nov. (Laos; female), A. penang sp. nov. (Malaysia; male), A. prangphe sp. nov. (Thailand; male, female), A. saiyok sp. nov. (Thailand; female) and A. thammim sp. nov. (Laos; male, female); the male of A. khanense Jäger & Nophaseud, 2024 is described for the first time. New records are listed for A. jagelkii Jäger, 2012 (Laos) and A. mariae Omelko & Fomichev, 2024a (Indonesia). Four new species of the genus Bowie Jäger, 2022 are described: B. kosulici sp. nov. (Thailand; male, female), B. soundandvision sp. nov. (Thailand; male, female) and B. weepingwall sp. nov. (Thailand; female) from the bemywife-group, and B. lehtineni sp. nov. (Sabah; female) from the chinagirl-group. Intraspecific variation is shown for the male of B. subterraneans Jäger, 2022, the female is described for the first time using topotypic material. The alleged record of B. neukoeln Jäger, 2022 from Sabah by Omelko and Fomichev (2024b) is considered a misidentification.

Jäger, P. (2026) Fourteen new species and notes on the genera Amauropelma Raven, Stumkat & Gray, 2001 and Bowie Jäger, 2022 (Arachnida: Araneae: Ctenidae) from Southeast Asia. Zootaxa, 5839 (3), 401–438. https://doi.org/10.11646/zootaxa.5839.3.1