Atractides moniezi, Motas, 1927

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 : 334-335

ATRACTIDES MONIEZI (MOTAŞ, 1927) ( FIG. 88A–F )

Megapus moniezi Motaş, 1927

Syn. Atractides virginalis Tuzovskij, 1977 : syn. nov.

Type series: Missing. Locus typicus: canal d’amenée du lac Saint-André aux Marches, près de Chambéry (Savoie), le 6 aout 1926, 1 ♀ ovigère […] Leg. C.Angelier. This site is at 300 m asl, records of three further females were published by Mota ş (1928) from Lac Saint-André and Lac Clair .

Material examined: SMF KOViets 2353 A. pavesii ♀ Grosser Stechlin See Westbucht , 80 cm, 29.10.1960 Mothes leg. ; NHMB Atractides moniezi ♀ Rotzloch, Vierwaldstättersee Coll. Rohrer 1972 . State of conservation: good (after remounting; original mounting fluid dark and dirty), some setae lacking (also the swimming hairs of III-L which were observed before remounting!), one I- L and one IV-L lacking, the other IV-L without terminal segment .

Description:

General features

Original description, male unknown dorsal integument: striated, with lines of fine pores in the lower integument layers; muscle attachments: smooth coxal field: mediocaudal margin of Cx-1 + 2 bluntly pointed, without indentation, coxae with borders of secondary sclerite

I-L: S-1 and -2 little distanced from each other, S-1 pointed, S-2 thicker and distally rounded excretory pore: smooth; Vgl-1: fused with Vgl-2

palp: slender, P-4 ventral margin 1: 1: 1, sword seta little enlarged, but not hair-like, inserted between the ventral hairs, nearer to the distoventral hair, P-5 without ‘cheeks’

Females

Original description, partly calculated from figures, dates from SMF 2353 in parentheses genital field: pregen with extended border of secondary sclerite, Ac in a curved line idiosoma L/W 1023/825 (780/650); glandularia 42 coxal field L 413 (400); Cx-3 W (530); Cx-1 + 2 mL (100), IL (280), W (370) I-L-5 dL 177 (180), vL 148 (145), dL/vL 1.20 (1.24), HA-HC 41 (37), 47 (45), 50

(52), dL/HB 3.77 (4.00) S-1 L 56 (57), L/W (11.4), S-2 L 61 (62), L/ W 8.9, interspace 7 (7), L S-1/2 0.92

(0.92) I-L-6 L 135 (145), HA-HC 26 (25), 28 (25), 33 (32), dL/HB 4.82 (5.80); L I-L-

5/6 1.31 (1.24) genital field L/W 147/182 (158/203); Ac-1–3 L 39 (35), 30 (40), 30 (30) gnathosoma vL 302 (300); chelicera L 411 (423), L/H 8.85 (12.1), bS/claw 3.37

(2.92)

Figures

Figure 88. Atractides moniezi, ♀ Germany SMF KOViets 2353. A, I-L-5 and -6; B, III-L-5 and -6 partial view; C, palp, medial view; D, chelicera; E, coxal field; F, genital and postgenital field. Scale bars = 100 µm.