Twenty New Records of Bees (Hymenoptera, Apoidea) for Sardinia (Italy).

In Sardinia, the second largest Mediterranean island, 316 species of bees are known. Here, for the first time, the following 20 are reported: (Linnaeus, 1761), and Morice, 1904 (Colletidae); Imhoff, 1832, Pérez, 1902, (Linnaeus, 1758), . Pérez, 1903, Stöckhert, 1935, Spinola, 1838, and Pérez, 1895 (Andrenidae); Thomson, 1870 (Halictidae); Morawitz, 1875, (Nylander, 1856), (Jurine, 1807), Spinola, 1838, Pérez, 1884, and (Lepeletier, 1841) (Megachilidae); and Imhoff, 1834, Arnold, 1888, Morawitz, 1875 and (Rossi, 1790) (Apidae).