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 scapulatus Gerecke & Di Sabatino, 2013 Fig. 14 Material examined. Type series (see Gerecke & Di Sabatino 2013 ): France : Corsica , benf 82 ( 1 / 1 /0); F 46 ( 1 /0/0); Italy : Sardinia, I 359 ( 1 / 3 /0); I 375 ( 1 /0/0); I 1156 ( 1 /0/0). FIGURE 14. Aturus scapulatus (from Gerecke & Di Sabatino 2013) A.–E. male; A. dorsum; B. IV-L-4–6 posterior; C. IV-L- 4–6 anterior; D. palp medially; E. P-4/5 laterally. F.–G. female; F. venter; G. palp. Scale bars = 100 µm. Uncertain attribution. Italy : Sardinia, I 359 (0/ 10 /0). Remark. Tentatively, 10 females from site I 359 which were not included in the type series, are here attributed to A. scapulatus , extending the description of this sex. In addition to the indications in the original description, females collected together with male A. scapulatus at sites benf 82 and I 359 have the following characteristics (measurements as mean, minimum-maximum in parentheses): Idiosoma L/W 318 ( 306–342 )/ 255 ( 243–275 ); idiosoma dorsal L 300 ( 280–324 ); dorsal shield L/W 279 ( 265–310 )/ 218 ( 206–238 ); Dgl- 4 / 5 far distanced from Dgl- 3 at posterolateral margin, distance ratio Dgl- 3–4 /Dgl- 4–5 , 3.3 ( 2.8 –4.0); Vgl lying in secondary sclerotization, close to the posterior margin of primary sclerotization. Three specimens contain each one large, elongated egg (L/W 135–148 / 81–85 ). In the position of Vgl and properties of the genital field (acetabula low in number, 6–8 , often with irregular outline, bi-or trilobate), these females are similar to A. barbatulus . The latter have a generally lower Dgl- 3–4 /Dgl- 4–5 ratio (<3.0). Furthermore, the investigated females of A. scapulatus have generally larger acetabula, with acetabulum 3–4 (counting from the medial line) being particularly enlarged.