Aturus paucisetus Motaş & Tanasachi, 1946

Gerecke, Reinhard, 2014, Studies on European species of the water mite family Aturidae Thor (Acari: Hydrachnidia), Zootaxa 3841 (1), pp. 1-46 : 14

Aturus paucisetus Motaş & Tanasachi, 1946

Fig. 9

Syn. to A. brachypus K.Viets, 1934 : E. Angelier, 1965, rejected synonymy.

Material examined. Type material lost.

Austria: SMF 49849, " Aturus paucisetus Mot. & Tan. ♀ Schwarzach unterhalb Alterschwende. Bregenzer Wald. Österr. Schwoerbel leg. Juni/ Okt. 1961 2828"; 49850-49851, ditto, "2829, 2830", 1 resp. 2 ♂♂. Switzerland: NHMB 4557 , " Aturus pauciporus ♂ Walter, 1947 Lüssel , hyp, Coll. Schiess" – in addition to a ♂ of A. pauciporus , the slide contains a ♂ of A. paucisetus (first record from Switzerland).

Remarks. The type series of this species is lost, but Central European material from NHMB and SMF is a good base for the verification of a set of diagnostic characters. The species cannot be synonymized, as proposed by E. Angelier (1965) with A. brachypus K.Viets, 1936 , a species differing, in males, in (1) simple, not bifurcated setae Dgl-3 and Lgl-1–2, (2) presence of a group of longer posterolateral idiosoma setae, (3) absence of proximally-directed ventral spine-like projections on IV-L-5, and (4) a very stout IV-L-6 (L/H <2.0, shorter than IV-L-5). Females found together with A. brachypus have the Dgl-4 closer to Dgl-5 (distance ratio Dgl-3–4/4–5, 2.7) than females collected with A. paucisetus (ratio 2.0).

Figures

FIGURE 9. Aturus paucisetus, male. A. IV-L- 4 / 5 anterior; B. dorsum. Scale bar = 100 µm.