Atractides pumilus (Szalay, 1946)

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 : 249

ATRACTIDES PUMILUS ( SZALAY, 1946) ( FIG. 49A–E )

Megapus pumilus Szalay, 1946

Syn. A. primitivus ( Walter, 1947) : syn. nov.; A. losonensis Rensburg, 1971 : syn. nov.

Type series: Missing. Locus typicus: Romania, Im Grundwasser des Sebes- Körös Flusses (Crisul-Repede) beim Zusammenfluss mit dem Dragán-Bache (Kom. Bihar) 27.IX.1942, 1 ♂ von Dr. P. A. Chappuis gesammelt .

Material examined: A. primitivus , type series; A. primitivus NHMB Rensburg preps 25, 26 CH Lelgio , 19.9.68 5; SMF 7919 ♂ / ♀ D Harz, Riefenbach .

Description:

General features

Original description and type series of A. primitivus :

dorsal integument: striated (9/10); muscle attachments: 5 pairs of sclerites, first pair including prefr, postoc, D-1, D-2 and Dgl-3, but postoc free and D-2 unsclerotized in juveniles, D-3 fused with Dgl-4, D-4 as a pair of longish sclerites not fused to any of the surrounding glandularia

I-L: I-L-5 and -6 little modified, L ratio 0-92-1.05, S-1 and -2 short, inserted side by side, with swollen, knob-shaped tips excretory pore: sclerotized; Vgl-1: fused to Vgl-2, V-1–3 sclerotized in adults, but smooth in juveniles palp: P-2 ventral margin straight, distally ending in a pointed, denticulated tip, ventral margin of P-3 straight, ending in a pointed ventrodistal edge, P-4 with ventral margin divided in three concave sectors 2: 2: 3, near insertion of ventral hair tubercular protrusions, sword seta approached to the distoventral hair.

Males

Figures

Figure 49. Atractides pumilus. A–C, type series of A. primitivus (= syn. to A. pumilus); D, E, ♂ from Harz (labelled ‘A. primitivus’, SMF 7917). A, ♂ idiosoma, ventral view; B, ♂ idiosoma, dorsal view; C, ♀ genital field; D, ♂ I-L-5 and -6; E, ♂ palp, medial view. Scale bars = 100 µm.