Atractides diastema (Szalay, 1935)

Gerecke, Reinhard, 2003, Water mites of the genus Atractides Koch, 1837 (Acari: Parasitengona: Hygrobatidae) in the western Palaearctic region: a revision, Zoological Journal of the Linnean Society 138, pp. 141-378 : 225-226

ATRACTIDES DIASTEMA (SZALAY, 1935) ( FIG. 39A–C )

Megapus diastema Szalay, 1935a

[syn. to A. distans (K. Viets, 1914) : Besseling, 1954, rejected synonymy]

Type series: Missing. Locus typicus: Hungary, Garamveszele (Kom. Bars) aus dem Fluss Garam ; leg. Dr. E. Dudich am 29.V.1933

Description:

General features

Males unknown dorsal integument: fine striation; muscle attachments: unsclerotized genital field: Ac in a weakly curved line I-L: I-L-5 setae S-1, S-2 not enlarged distally, S-2 strongly thickened in the basal third, wide setal interspace (>50 Mm); I-L-6 curved, maximum H

basally, strongly narrowed in the centre (HB), slightly thickened distally excretory pore: smooth; Vgl-1: not fused to Vgl-2

palp: see below

Female

Original description genital field: genital plates with weak indentations at borders Ac-1/2 and Ac- 2/3

palp: P-2 ventral margin of P-2 slightly protruding; P-4 2: 2: 1, sword seta anteriorly from distoventral hair idiosoma L/W 617/583; glandularia small coxal field L 367

I-L-5 dL 233, HB 58, dL/HB 4.02

S-1 L 125, S-2 L 100, interspace> 50, L S-1/2 1.25

I-L-6 L 183, HB 17, dL/HB 10.76; L I-L-5/6 1.27

genital field L/W 167/158

gnathosoma vL 133; chelicera –

Figures

Figure 39. A–C, Atractides diastema, ♀ (from Szalay, 1935). A, genital field; B, I-L-5 and -6; C, gnathosoma with chelicera and left palp, medial view; D–I, Atractides cisternarum; D, E, ♀ from Motaş et al. (1947), F–I, holotype ♂ SMF 4895. D, idiosoma, ventral view, partial view; E, palp, medial view; F, I-L-5 and -6; G, palp, medial view; H, coxal field; I, genital and postgenital field. For A–E, no magnification scale bars published, Scale bar for F–I = 100 mm.