Atractides simillimus

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 : 274

ATRACTIDES SIMILLIMUS ANGELIER, 1953

nov. nom. pro A. similis (Angelier, 1949) not necessary

ATRACTIDES CORSICUS (ANGELIER, 1954)

( FIG. 58D–L )

Atractides nodipalpis corsicus Angelier, 1954a A. fonticolus corsicus ( Angelier et al., 1963)

Type series: No access. Loci typici: France, Corse, coll. Angelier. Station 4, Bevinco, sous le col de San Stephano, 320 m, 16.08.1950 1 ♀ ; Station 6, Golo, près de Ponte-Castirla, 280 m, 15.08.1950 1 ♀ ; Station 13, Rivière Casaluna, sur la bord de la route I. C. 39, à 2 km au nord-ouest de la route allant vers Poggio, 300 m, 31.08.1950 1 ♀ ; Station 20, Tavignano, à 6 km au sud-est de Corte, sous le pont de la route I.C. 40, 300 m, 23.08.1950 1 ♂, 3 ♀ ; Station 22, Rivière du Vecchio, sous le col de Vizzavona, 980 m, 20.08.1950 1 ♀ ; Station 24, Fium Orbo, près de la route forestière n∞ 10, 130 m, 26.08.1950 2 ♀ ; Station 37, Taravo, entre Forciolo et Olivèse, sous le pont de la route I.C. 2, 400 m environ, 22.08.1950 1 ♀ ; Station 38, Taravo, à 2 km au sud des Bains de Taccana, sous le pont de la route nationale, 196 (pont d’Abra) 170 m, 22.08.1950 1 ♀ ; Station 44, Ruisseau de Crioscia affluent rive droite de la rivière Zonza, à 3 km au nord-ouest de Zonza, sur le bord de la route nationale 852, 700 m, 18.08.1950 3 ♀ .

Description:

General features dorsal integument: striated; muscle attachments: smooth coxal field: mediocaudal margin Cx-1 weakly convex, caudal apodemes Cx- 2 in a 45∞ angle

I-L: I-L-5 thickened, S-1–2 distanced; I-L-6 slender and strongly curved excretory pore: smooth; Vgl-1:?

palp: sexual dimorphism; P-4 ventral hairs 1: 1: 1, sword seta halfway between hair insertions

Males

Original description [calculated from figures]

genital field: apple-shaped, anteriorly weakly convex without indentation, posteriorly indented, Ac-3> Ac-2> Ac-1; genital setae: 35

palp: P-2 with unique, strongly protruding ventrodistal extension; P-3 with concave ventral margin, P-4 thickened idiosoma L/W 640/500; glandularia?

coxal field L 308; Cx-3 W –; Cx-1 + 2 mL –, IL –, W –

I-L-5 dL 195, vL [118], dL/vL [1.65], HA-HC –, [43], –, dL/HB [4.53]

S-1 L 87, L/W –, S-2 L 61, L/W –, interspace 35, L S-1/2 1.43

I-L-6 L 128, HA-HC –, 15, –, dL/HB [8.4]; L I-L-5/6 1.52 [1.46]

genital field L/W 105/105, Ac-1–3 L –

gnathosoma vL 150; chelicera L 210, L/H 5.25, bS/claw 2.82

Figures

Figure 58. A–C, Atractides gracilipes ♂, from E. Angelier (1954). A, ventral idiosoma; B, palp, lateral view; C, I-L-5 and - 6. D–L Atractides corsicus, from E. Angelier (1954). D, ♂ coxal and genital field, E, ♀ coxal and genital field; F, ♀ I-L-5 and -6; G, ♀ palp, medial view; H, ♂ palp, medial view, I ♂ genital field, K ♂ I-L-5 and -6, L ♀ genital field. Scale bars = 100 µm.