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Two new subterranean species of the genus Chthonius from Latium (Pseudoscorpiones, Chthoniidae)

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Received: July 30, 2026
Published: July 30, 2026
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Two new subterranean species of the genus Chthonius C.L. Koch, 1843 from Latium caves are described: Chthonius auruncus n. sp. (♀, Voragine del Vallaroce 1000 La/LT, Formia, Latina province, Aurunci Mountains) and Chthonius hernicus n. sp. (♀, Grotta della Regina Margherita 22 La/FR, Collepardo, Frosinone Province, Ernici Mountains). Chthonius auruncus n. sp. is compared to the widespread epigean Chthonius tenuis L. Koch, 1873 and the subterranean Chthonius ligusticus Beier, 1930, Chthonius lanzai Caporiacco, 1947 and Chthonius elongatus Lazzeroni, 1970 from caves in eastern Liguria and Tuscany. Chthonius hernicus n. sp. is compared to the widespread epigean Chthonius densedentatus Beier, 1938 and the subterranean Chthonius caoduroi Callaini, 1987 from a cave in Basilicata. Chthonius vannii Callaini, 1986 (n. stat.) is upgraded from subspecies of Chthonius lanzai Caporiacco, 1947.

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“Two new subterranean species of the genus Chthonius from Latium (Pseudoscorpiones, Chthoniidae)” (2026) Memorie della Società Entomologica Italiana, 103(2), pp. 85–91. doi:10.4081/memoriesei.2026.85.