Paravillersia jamaliensis Khaustov
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publication ID |
https://doi.org/ 10.11646/zootaxa.3873.1.5 |
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publication LSID |
lsid:zoobank.org:pub:E429C74D-BB94-4E76-B9BB-E689D8102CA0 |
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DOI |
https://doi.org/10.5281/zenodo.6125483 |
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persistent identifier |
https://treatment.plazi.org/id/039AAF2A-B570-FFC2-37D1-FC223713FE28 |
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treatment provided by |
Plazi |
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scientific name |
Paravillersia jamaliensis Khaustov |
| status |
sp. nov. |
Paravillersia jamaliensis Khaustov sp. nov.
( Figs. 1–5 View FIGURE 1 View FIGURE 2 View FIGURE 3 View FIGURE 4 View FIGURE 5 )
Description. FEMALE ( Figs. 1–5 View FIGURE 1 View FIGURE 2 View FIGURE 3 View FIGURE 4 View FIGURE 5 ). Idiosoma oval in outline. Length of idiosoma 355 (310–370), width 280 (235–280). Idiosomal dorsum ( Figs. 1 View FIGURE 1 A, 5A–C). Idiosoma almost completely covered by 3 large and weakly sclerotized shields. Prodorsal and hysterosomal shields with weakly developed dimples in lateral parts. Central parts of prodorsal and hysterosomal shields smooth. Diameter of eyes 9 (8–9). Dorsal setae sparsely barbed, distinctly blunt-ended. Setae f 1, h 1, and h 2 distinctly longer and thicker than other hysterosomal setae. Suranal plate dorsal ( Fig. 5 View FIGURE 5 C). Length of dorsal setae: vi 24 (19–24), ve 29 (23–29), sci 21 (15–21), sce 21 (19–21), c 1 21 (18–21), c 2 14 (13–15), d 1 16 (14–16), d 2 16 (14–16), e 1 13 (12–13), e 2 10 (9–10), f 1 31 (30–33), h 1 35 (26–36), h 2 30 (26–31). Distances between setae: vi– vi 50 (48–53), ve–ve 98 (86–100), sci–sci 180 (160–180), c 1– c 1 76 (65–76), d 1– d 1 100 (81–100), d 2– d 2 240 (225–250), e 1– e 1 115 (96–115), e 2– e 2 160 (155–175), f 1– f 1 94 (83–95). Idiosomal venter ( Figs. 1 View FIGURE 1 B, 5D, 5F). With 2 pairs of round callosities between hysterosomal and humeral shields ( Fig. 5 View FIGURE 5 F). Anterior callosity distinctly larger than posterior one. Endopodal plates separated medially, weakly reticulated. Humeral shields smooth. All ventral setae smooth, pointed. With 2 pairs of subequal aggenital, and 3 pairs of subegual pseudanal setae. Setae ps 1 slightly thicker than ps 2 and ps 3. Striae in centre between coxal fields I-II and III-IV, and posteriorly to subcapitulum with microtubercles ( Fig. 5 View FIGURE 5 E). Length of ventral setae: 1 a 23 (22–27), 1 b 19 (19–21), 1 c 13 (12–14), 2 b 11 (11–14), 2 c 12 (12–15), 3 a 30 (24–31), 3 b 12 (11–13), 3 c 11 (11–13), 4 a 18 (14–18), 4 b 10 (9–12), 4 c 10 (10–12), ag 1 10 (9–11), ag 2 10 (9–11), ps 1 17 (16–19), ps 2 11 (10–14), ps 3 12 (11–14). Gnathosoma ( Figs. 2 View FIGURE 2 , 5 View FIGURE 5 E). Tibial claw well-developed. Setae l’ on palpal tibia spine-like ( Fig. 2 View FIGURE 2 A). Setae d on palpal femur distinctly blunt-ended and strongly barbed on distal half, other palpal setae pointed. Palpal supracoxal setae (ep) seta–like. Rostrum of smooth subcapitulum ( Figs. 2 View FIGURE 2 B, 5E) very long. Subcapitular setae or 1 smooth, distinctly thickened, curved and blunt-ended; other subcapitular setae simple, pointed. Length of subcapitular setae: m 30 (30–33), n 20 (19–23), or 1 8 (8–9), or 2 14 (13–16). Legs ( Figs. 3–4 View FIGURE 3 View FIGURE 4 ). Empodial raylets capitate. Leg I ( Fig. 3 View FIGURE 3 A). Coxae I posterodorsally with seta-like leg supracoxal setae (el). Setae d on tibia and (p), (tc), (ft) on tarsus eupathidia. Setae d on genu and femur distinctly thickened, baculiform, sparsely barbed. Seta k of genu I 11 (11–13) long. Solenidion ω relatively short 15 long (13–15), finger-shaped; solenidion φ 8 long (7–10) baculiform, φp attenuate 21 long (17–23). Leg II ( Fig. 3 View FIGURE 3 B). Setae d of tibia, p’ and tc’ of tarsus represented by eupathidia. Setae d on genu, d and l” on femur distinctly thickened, baculiform, sparsely barbed. Solenidion ω 13 long (11–13) finger-shaped; solenidion φ 19 long (16–19), attenuate. Seta k 6 long (6–7). Leg III ( Fig. 4 View FIGURE 4 A). Solenidion ω 7 long (6–7), baculiform; solenidion φ 15 long (14–15), attenuate. Setae d on tibia and genu distinctly thickened, baculiform, sparsely barbed. Leg IV ( Fig. 4 View FIGURE 4 B). Solenidion ω 4 long (4–5) baculiform; solenidion φ 13 long (15–16) attenuate. Setae d on tibia, genu and femur distinctly thickened, baculiform, sparsely barbed.
MALE and IMMATURES unknown.
Type material. Holotype female, slide № EB 030814, RUSSIA: Yamalo-Nenets Autonomous Okrug, Priuralskiy Region, vicinity of settlement Katravozh, 66 0 19’40”N, 66 0 05’60”E, from mosses on fen, 3 July 2014, coll. E.A. Bragin. Paratypes: 12 females, same data as holotype.
Type deposition. The holotype and 7 paratypes are deposited in the mite collection of the Tyumen State University Museum of Zoology, Tyumen, Russia; 5 paratypes are deposited in the mite collection of the Zoological Institute of Eussian Academy of Sciences, St.-Petersburg, Russia.
Etymology. The new species name refers to Yamal, the large peninsula in Western Siberia where this species was collected.
Differential diagnosis. The new species differs from P. gr a t a by the dorsal position of the suranal plate (vs. ventral in P. gr a t a); by 2 pairs of the aggenital setae (vs. 3 pairs in P. grata ), and by distinctly shorter dorsal idiosomal setae c 1, d 1, d 2, e 1, and e 2 (10–16 vs. 20–53 in P. g r at a).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.