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Arthropoda, Volume 3, Issue 2 (June 2025) – 1 article

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29 pages, 15189 KiB  
Article
Taxonomy and Distribution of the Cave-Dwelling Scorpions Troglorhopalurus (Scorpiones, Buthidae), with the Description of a New Cave-Restricted Species
by Leonardo Sousa Carvalho, Maria Idalete Lopes Silva, Priscila Emanuela de Souza and Rodrigo Lopes Ferreira
Arthropoda 2025, 3(2), 6; https://doi.org/10.3390/arthropoda3020006 - 7 Apr 2025
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Abstract
The genus Troglorhopalurus (Scorpiones: Buthidae) is endemic to northeastern Brazil and comprises cave-dwelling species with limited distributions. Based on newly collected specimens, this study provides a description of a new cave-dwelling Troglorhopalurus species and the first detailed description of the male hemispermatophore of [...] Read more.
The genus Troglorhopalurus (Scorpiones: Buthidae) is endemic to northeastern Brazil and comprises cave-dwelling species with limited distributions. Based on newly collected specimens, this study provides a description of a new cave-dwelling Troglorhopalurus species and the first detailed description of the male hemispermatophore of the genus. Troglorhopalurus iuiu n. sp. is diagnosed based on morphometric characters, distinct carapace granulation, and differences in the pedipalps and metasomal carinae and peg sensillae shape. The hemispermatophore of Troglorhopalurus is like other Centruroidinae species, with internal, external, and basal lobes. Additionally, we discuss the distribution and conservation status of Troglorhopalurus species. Troglorhopalurus lacrau distribution range is extended based on additional epigean and hypogean records. This species may be reassessed from data deficient to least concern. Based on the limited localities and declining habitat quality, we propose that T. iuiu n. sp. be considered endangered. This research underscores the importance of further sampling to explore species-specific variations and promote conservation efforts for these ecologically specialized scorpions. Full article
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