Taxonomy and Distribution of the Cave-Dwelling Scorpions <i>Troglorhopalurus</i> (Scorpiones, Buthidae), with the Description of a New Cave-Restricted Species
2025
Leonardo Sousa Carvalho | Maria Idalete Lopes Silva | Priscila Emanuela de Souza | Rodrigo Lopes Ferreira
The genus <i>Troglorhopalurus</i> (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 <i>Troglorhopalurus</i> species and the first detailed description of the male hemispermatophore of the genus. <i>Troglorhopalurus iuiu</i> 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 <i>Troglorhopalurus</i> is like other Centruroidinae species, with internal, external, and basal lobes. Additionally, we discuss the distribution and conservation status of <i>Troglorhopalurus</i> species. <i>Troglorhopalurus lacrau</i> 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 <i>T. iuiu</i> 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.
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