Studies on European species of the water mite family Aturidae Thor (Acari: Hydrachnidia) Author Gerecke, Reinhard text Zootaxa 2014 3841 1 1 46 journal article http://dx.doi.org/10.11646/zootaxa.3841.1.1 07cca84d-e413-47d9-9ea5-5d24be4dce1b 1175-5326 286746 5FAADB3D-2359-453F-8BF5-1C2A33C6D178 Aturus barbatulus K. Viets, 1936 Fig. 4 Material examined. Italy : Calabria, I 105 ( 1 / 1 /0); Sicily, I 45 ( 1 / 11 / 5 ), I 187 ( 1 /0/0), I 237 ( 1 /0/0), I 330 ( 1 /0/0), I 497 ( 1 / 2 /0), I 502 ( 3 / 5 / 1 ), I 503 ( 1 / 2 /0), I 517 ( 1 / 1 /0), I 667 ( 1 /0/0). Uncertain records. Italy : Calabria, I 103 (0/ 1 /0); Sardinia, I 369 (0/ 2 /0), I 376 (0/ 1 /0); Sicily, I dp 65 (0/ 1 /0), I 167 (0/ 1 /0), I 221 (0/ 2 /0), I 468 Int (0/ 1 /0), I 501 (0/ 1 /0), I 576 Int (0/ 1 /0). Remarks. Females found together with male A. barbatulus are characteristic in the combination of ( 1 ) a Dgl- 3–4 /Dgl- 4–5 distance ratio of about 2.5–2.8 ; ( 2 ) location of Vgl on the border between primary and secondary sclerotization, ( 3 ) 6–8 (rarely up to 10 ) acetabula mostly in a single, but irregular line, some of them strongly bi- or trilobate in outline, and ( 4 ) a weak sclerotization in the gonopore area projecting in a pair of little distinct posterolateral angles at both sides of gonopore. Habitat. Preferably in low order streams and shaded spring habitats, in Central Sicily also under semiarid conditions ( Gerecke 1991 a ). Site I 45 , in 1985 an oasis-like isolated hygropetric rheocrene in a forest remnant on Mt. Etna, is meanwhile destroyed.