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The genus Alpioniscus Racovitza, 1908 in Sardinia: taxonomy and natural history (Isopoda, Oniscidea, Trichoniscidae)

2018; Pensoft Publishers; Volume: 801; Linguagem: Inglês

10.3897/zookeys.801.24102

1313-2989

Stefano Taiti, Roberto Argano, Paolo Marcia, Fabio Scarpa, Daria Sanna, Marco Casu,

Subterranean biodiversity and taxonomy

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. Alpioniscusfragilis (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.