Hoplocheylus sogdianicus Barilo and Sharipov, 1987

Khaustov, Alexander A., 2015, To systematics of the mite genus Hoplocheylus (Acariformes: Tarsocheylidae), Zootaxa 3957 (3), pp. 277-299 : 294

Hoplocheylus sogdianicus Barilo and Sharipov, 1987

( Figs. 17–19 , 20 B–D)

Hoplocheylus sogdianicus Barilo and Sharipov, 1987: 1892 , fig. 1–4.

Redescription. FEMALE ( Figs. 17–19 , 20 B–D). Length of idiosoma 385, length of body including gnathosoma 440, width 140. Gnathosoma similar with that of H. magnificus sp. nov., but eupathidion ul” extremely small, difficult to discern. Lengths of gnathosomal setae: cha 15, chb 8, m 22, n 30, or 3. Length of palps 55. Idiosomal dorsum ( Fig. 17 A) similar with that of H. magnificus sp. nov., but all hysterosomal setae smooth and pointed, posterior part of prodorsal shield with delicate striation ( Fig. 20 C). Lengths of dorsal setae: v 1 38, v 2 16, sc 1 21, sc 2 46, c 1 28, c 2 50, d 27, e 27, f 41, h 1 48, h 2 44. Idiosomal venter ( Figs. 17 B) similar with that of H. magnificus sp. nov., but midsternal plate between coxal fields II and III almost quadrangular. Lengths of ventral setae: 1 a 13, 1 b 12, 1 c 25, 1 d 12, 2 a 16, 2 b 25, 2 c 18, 3 a 17, 3 b 20, 3 c 21, 4 a 14, 4 b 10, 4 c 11, ag 1 14, ag 2 16, ag 3 18, g 1 11, g 2 10, g 3 10, g 4 11, ps 1 40, ps 2 36, ps 3 24. Legs ( Figs. 18 , 19 , 20 B, D). Lengths of legs: I 120, II 83, III 92, IV 115. Leg setation as in H. magnificus sp. nov. Empodia on tarsi II–IV with unusual undulate anterior margin ( Fig. 20 D). Setae p’ on tarsi II–IV not bifurcate. Leg I ( Fig. 18 A) Setae v’ of trochanter, femur, genu and tibia blunt-ended. Setae v’ of femur and tibia distinctly barbed. Solenidion ω 2 baculiform, distinctly longer than other solenidia on leg I. Solenidion ω 1 thumb-like, reaching slightly beyond tip of tarsus. Solenidion φ 1 clavate, φ 2 finger-shaped. Lengths of solenidia: ω 1 9, ω 2 12, φ 1 8, φ 2 7. Leg II ( Fig. 18 B). Setae v’ of trochanter and l’ of femur blunt-ended. Setae l’ of femur barbed. Solenidion φ well-developed, clavate ( Fig. 20 B). Lengths of solenidia: ω 10, φ 4. Leg III ( Figs. 19 A, 20D). All setae of leg III smooth and pointed, except blunt-ended p’. Solenidion φ 4 long. All setae of leg III smooth and pointed, except blunt-ended p’. Leg IV as in Fig. 19 B.

MALE and IMMATURES unknown.

Material examined. Female holotype, slide 1540, UZBEKISTAN, dry loess in layer of 0–5 cm, East of Samarkand, 0 2 May 1982, coll. S.A. Sharipov.

Type deposition. Holotype currently deposited in the mite collection of the Tyumen State University Museum of Zoology, Tyumen, Russia.

Remarks. In the original description of H. sogdianicus authors mentioned absence of setae on trochanter I and solenidion on tibia II. Our study of the holotype revealed these structures present and well-developed ( Fig. 20 B).

Figures

FIGURE 17. Hoplocheylus sogdianicus Barilo and Sharipov, 1987, female: A—dorsum, B—venter.

FIGURE 18. Hoplocheylus sogdianicus Barilo and Sharipov, 1987, female: A—leg I in dorsal view, B—leg II in dorsal view.

FIGURE 19. Hoplocheylus sogdianicus Barilo and Sharipov, 1987, female: A—leg III in dorsal view, B—leg IV in dorsal view.

FIGURE 20. DIC photos: Hoplocheylus magnificus Khaustov sp. nov., larva: A—pharynx, Hoplocheylus sogdianicus Barilo and Sharipov, 1987, female: B—leg II in dorsal view, C—posterior part of prodorsal shield, D—leg III in dorsal view.