The genus Alpioniscus Racovitza, 1908 in Sardinia: taxonomy and natural history (Isopoda, Oniscidea, Trichoniscidae)
- 1. Università di Firenze, Florence, Italy|Istituto di Ricerca sugli Ecosistemi Terrestri, Consiglio Nazionale delle Ricerche, Florence, Italy
- 2. Università degli Studi "La Sapienza", Rome, Italy
- 3. Università degli Studi di Sassari, Sassari, Italy
Description
The genus Alpioniscus Racovitza, 1908 (Trichoniscidae) from Sardinia is revised. Three new cave-dwelling species are described: A. onnisi Taiti & Argano, sp. n., A. stochi Taiti & Argano, sp. n., and A. sideralis Taiti & Argano, sp. n.. The genus Utopioniscus Schmalfuss, 2005 is considered to be a junior synonym of Alpioniscus, after morphological and molecular analyses. Alpioniscus fragilis (Budde-Lund, 1909) and A. kuehni from Grotta del Bue Marino are illustrated. With the new species, the genus Alpioniscus in Sardinia comprises six species: two troglobionts (A. fragilis and A. onnisi), one endogean and troglobiont (A. thanit Taiti & Argano, 2009), and three stygobionts (A. kuehni, A. stochi, and A. sideralis). All the species occur in karstic areas in the central-eastern and south-eastern part of the island. A key to all the Sardinian species of Alpioniscus is provided.
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