Arrenurus parviscutatus (K. Viets, 1954)

Smit, Harry, 2020, New records of the water mite genus Arrenurus Dugès, 1834 from South America (Acari: Hydrachnidia: Arrenuridae), with the description of five new species and one new subspecies, Acarologia 60 (2), pp. 371-389 : 372-374

Arrenurus parviscutatus (K. Viets, 1954)

( Figure 1 )

Material examined— Argentina. Entre Ríos Province: 1/2/0, ditch at Brazo Largo, N of Zarate, 33°54’37,21” S, 58°51’9,24” W, 6-xi-1999.

Description — Male: Idiosoma dorsally 721 long and 583 wide, ventrally 713 long. Dorsal shield complete, 300 long and 340 wide. Posterior to dorsal shield three irregularly shaped areas with a finer porosity.

Remarks — Male and female are well-described by Rosso de Ferradás (2006b) and therefore only some measurements are given and an illustration of the male dorsum is presented. The only difference with her illustration of the male is that the associated setae of Dgl-3 are located medially and distanced of these glandularia. The areas with finer porosity are not mentioned in the original description of K. Viets (1954b).

Distribution — Known from Brazil (1954b) and Argentina ( Rosso de Ferradás 2006b).

Figures

Figure 1 Arrenurus parviscutatus K. Viets, male, dorsum. Scale bar = 100 µm.