Paravillersia grata Kuznetsov, 1978

Khaustov, Alexander A., 2014, A new species of the genus Paravillersia (Acari: Prostigmata: Stigmaeidae) from Western Siberia, with supplementary description of Paravillersia grata Kuznetsov, 1978, Zootaxa 3873 (1) : -

Paravillersia grata Kuznetsov, 1978

(Figs. 6–9)

Paravillersia grata Kuznetsov, 1978: 50 , fig. 1.

FIGURE 6. Paravillersia grata Kuznetsov, 1978 , female: A—seta ve, B—seta sci, C—seta c 1, D—seta e 2, E—seta f 1, F—seta h 1.

Supplementary description. FEMALE (Figs. 6–9). Dorsal idiosomal setae not so heavily barbed as in original description (Fig. 6), distinctly thickened distally and sparsely barbed in distal half. Setae c 1 and d 1 almost clavate. Diameter of eyes 12. Length of dorsal setae: vi 37, ve 55, sci 38, sce 45, c 1 37, c 2 20, d 1 40, d 2 40, e 1 53, e 2 43, f 1 58, h 1 44, h 2 37. Distances between setae: vi– vi 37, ve–ve 82, sci–sci 150, c 1– c 1 140, d 1– d 1 135, d 2– d 2 250, e 1– e 1 135, e 2– e 2 205, f 1– f 1 92. Сallosities situated very close to each other ( Fig. 7 A); inner callosity bean-like, outer oval. Setae c 2 situated on humeral shield ( Fig. 7 A). Length of ventral setae: 1 a 32, 1 b 28, 1 c 26, 2 b 28, 2 c 23, 3 a 31, 3 b 24, 3 c 25, 4 a 24, 4 b 20, 4 c 19, ag 1 18, ag 2 19, ag 3 18, ps 1 20, ps 2 15, ps 3 15. Gnathosoma ( Fig. 7 B). Palps as in P. jamaliensis sp. nov. Rostrum of subcapitulum long, similar with that of P. j am al i e n s i s sp. nov. Setae or 1 thickened and curved. Length of subcapitular setae: m 25, n 24, or 1 13, or 2 18. Legs ( Figs. 8–9 ). Empodial raylets weakly capitate. Leg I ( Fig. 8 A). Coxae I posterodorsally with seta-like supracoxal setae (el). Setae d on tibia and (p), (tc), (ft) on tarsus represented by eupathidia. Setae d, l” on genu and d on femur distinctly thickened, baculiform, sparsely barbed. Seta k 10. Solenidion ω 21 long, finger-shaped; solenidion φ 12 long baculiform, φp attenuate, 25 long. Leg II ( Fig. 8 B). Setae d on tibia, p’ and tc’ on tarsus represented by eupathidia. Setae d on genu and femur distinctly thickened, baculiform, sparsely barbed. Solenidion ω 14 long, finger–shaped; solenidion φ 20 long, attenuate. Seta k 6 long. Leg III ( Fig. 9 A). Solenidion ω 6 long, baculiform; solenidion φ 18 long, attenuate. Setae d on tibia, genu and femur distinctly thickened, baculiform, sparsely barbed. Leg IV ( Fig. 9 B). Solenidion ω 4 long, baculiform; solenidion φ 21 long, attenuate. Setae d on tibia, genu and femur distinctly thickened, baculiform, sparsely barbed.

Material examined. Holotype female, RUSSIA: Voronezh Province, Voronezh, in litter under coniferous, 30 October 1972, coll. N.N. Kuznetsov.

Type deposition. The holotype is deposited in the mite collection of the Nikita Botanical Gardence, Yalta, Crimea, Russia.

Remarks. The female holotype is in rather bad condition, especially idiosoma and I provided only supplementary description because some body structures are almost invisible. The dorsal body setae are not so heavily barbed as in the original description. Setae c 2 are situated on the humeral shield instead out of the shield in the original description.

Figures

FIGURE 7. Paravillersia grata Kuznetsov, 1978, female: A—ventrolateral part of podosoma, B—palp dorsally.

FIGURE 8. Paravillersia grata Kuznetsov, 1978, female: A—leg I, B—leg II.

FIGURE 9. Paravillersia grata Kuznetsov, 1978, female: A—leg III, B—leg IV.