The water mites of the genus Atractides Koch, 1837 (Acari, Hydrachnidia: Hygrobatidae) in Corsica and Sardinia Author Gerecke, Reinhard Muséum national d’Histoire naturelle, Département Systématique et Évolution, CNRS UMR- 7205, case postale 53, 57 rue Cuvier, F- 75231 Paris cedex 05 (France) and Biesingerstr. 11, 72070 Tübingen (Germany) reinhard. gerecke @ uni-tuebingen. de text Zoosystema 2014 2014-12-26 36 4 735 759 journal article 10.5252/z2014n4a3th 1638-9387 5159469 Atractides polyporus (K. Viets, 1922) MATERIAL EXAMINED. — Corsica . F 33, 2 ♀♀ ; F 84, 1 ♀ ; F 86, 1 ♂ , 1 ♀ . Sardinia. I 370a, 2 ♂♂ , 2 ♀♀ ; I 1155 1 ♂ ( MNHN ) . Corsica . F 25, 2 ♂♂ ; F 26, 2 ♂♂ , 1 ♀ ; F 27b, 1 ♂ ; F 29, 1 ♀ ; F 33, 2 ♀♀ ; F 35, 1 ♂♂ ; 2 dn; F 77, 1 ♂ , 1 ♀ ; F 86, 2 ♂♂ , 42 ♀♀ . Sardinia. I 370a, 3 ♂♂ , 16 ♀♀ ; I 370b, 1 ♀ ; I 384, 1 ♂ , 16 ♀♀ ; I 1153 , 4 ♂♂ , 1 ♀ ; I 1154 , 12 ♂♂ , 4 ♀♀ ; I 1159 , 1 ♀ ; I 1160 , 1 ♂ , 3 ♀♀ ; I 1161 , 1 ♂ ; I 1166 , 1 ♀ ; I 1168 , 59 ♂♂ , 19 ♀♀ ; I 1169 , 3 ♂♂ , 13 ♀♀ ; I 1172 , 71 ♂♂ , 60 ♀♀ ; I 1178 , 5 ♂♂ , 5 ♀♀ (Coll. RG ) . DISTRIBUTION. — Central Europe, Mediterranean. First records from the area covered. HABITAT. — Crenobiont. With a total of 366 specimens from the area covered the Atractides species recorded in the highest abundance, but restricted to weakly seeping rheohelocrenes and therefore previously overlooked. Preferably in shaded valleys, in the area covered from 280 to 1800 m .