Stenohya dongtianensis Li & Shi 2023, sp. nov.
Creators: name: Li, Yun-Chun
name: Shi, Ai-Min
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Pseudoscorpiones
Neobisiidae
Stenohya
Stenohya dongtianensis

description: Stenohya dongtianensis sp. nov.
(Figures 1, 3A)
Type material. Holotype male: China, Guangxi Province, Guilin City, Xingan County, Hucheng Town, Dongtian Village, Longpan Mountain, Rudongyan, 25º34’26.3’’N, 110º37’12.2’’E, 200 m a.s.l., 21 February 2019, Yun-Chun Li leg., in MCWNU (Ar-Ps-GX-0009); Paratype: 1 male, collected with the holotype, in MCWNU (Ar-Ps-GX-0007).
Diagnosis (male, female unknown). This new species is distinguished from other members of the genus Stenohya by the following combination of characters: pedipalpal femur with one distal tubercle on the prolateral face, hand with 14 large tooth-shaped tubercles in the middle (retrolateral view). Fixed finger with 112–115 small cusped teeth, movable finger with 106–110 teeth. Pedipalpal femur 5.21–5.26× longer than broad, length 1.96–1.97 mm; chela with pedicel 4.56–4.60× longer than broad, length 3.62–3.63 mm; ratio movable chelal finger/chelal hand (with pedicel) 1.46–1.48×.
Etymology. Latinised adjective, derived from Dongtian Village, near the type locality.
Description. Carapace, chelicerae and abdomen brown, remaining parts yellowish brown.
Carapace (Fig. 1A): 1.06–1.08× longer than broad, with four well-developed eyes; two anterior eyes, length 0.12–0.13 mm, breadth 0.07–0.08 mm; two posterior eyes length 0.09–0.10 mm, breadth 0.05–0.06 mm; anterior margin with distinct epistome, triangular. Carapace surface with seven lyrifissures. With a total of 29 or 30 setae, including six on the anterior margin and seven or eight on the posterior margin.
Chelicera: Hand with six or seven setae and two lyrifissures dorsally, movable finger with one submedial seta; fixed cheliceral finger with 13 teeth, movable finger with seven teeth (Fig. 1B). Galea divided into two main branches, one of them forked apically (Figs 1B, C). Serrula exterior with about 39 blades and serrula interior with 33; rallum composed of six blades (Fig. 1D).
Pedipalp (Fig. 1I–M): pedipalpal femur with one distal tubercle on the prolateral face, and with seven lyrifissures, patella with eight lyrifissures, hand with 14 large tooth-shaped tubercles in the middle (retrolateral view), each tooth-shaped tubercle has a seta at the base (Fig. 1I, J). Trochanter 2.21–2.23×, femur 5.21–5.26×, patella 4.19–4.24× longer than broad, femur 1.13–1.14× longer than patella. Chela (with pedicel) 4.56–4.60×, hand (with pedicel) 1.92–1.95× longer than broad; movable chelal finger 1.46–1.48× longer than hand (with pedicel) length. Fixed finger with 112–115 small cusped teeth, movable finger with 106–110 teeth; venom duct in fixed finger, very short. Fixed chelal finger with eight trichobothria and movable finger with four trichobothria, eb, esb, ib and isb located basally of the fixed finger; et, est, it (retrolateral view) and ist (prolateral view) situated distally, et distinctly closer to fingertip than to it; on movable finger, b and sb located basally, t and st situated distally.
Abdomen: tergal chaetotaxy (I–XI): 6: 8: 8: 8: 8: 9: 11: 12: 12: 10: 7; sternal chaetotaxy (IV–XI): 27: 15: 13: 14: 16: 17: 11: 7; anal cone with two dorsal and two ventral setae. Tergite XI with two tactile setae. Manducatory process with five setae. Pedipalpal coxa with 12 setae, coxa I 9, II 8, III 9, IV18 setae. Anterior genital operculum with 40–42 setae and two lyrifissures; posterior operculum with 27–29 setae, two lyrifissures (Fig. 1H). Sternites VI 12–13, VII 13, VIII 13 medial scattered glandular setae (Fig. 1E).
Legs (Fig. 1F, G): Leg I: trochanter 0.91–0.93× longer than deep, femur 4.42–4.43× longer than deep and 1.40–1.42× longer than patella, patella 2.76–2.77× longer than deep, tibia 4.29–4.30× longer, basitarsus 3.23–3.24× longer, telotarsus 4.43–4.45× longer than deep, telotarsus 1.29–1.30× longer than basitarsus. Leg IV: trochanter 2.89–2.93× longer than deep, femur+patella 3.62–3.65× longer than deep, femur shorter than patella, tibia 5.78– 5.79× longer than deep, basitarsus 4.14–4.16× longer, telotarsus 6.37–6.38× longer than deep. Basitarsus with one tactile seta (distally, TS = 0.53), telotarsus with a tactile seta near the middle (TS = 0.46), subterminal seta forked, arolia shorter than claws.
Dimensions (Length/width or, in the case of the legs, length/depth in mm).
Males: body length 3.83–3.92. Carapace 1.35–1.37/1.28–1.29. Pedipalp: trochanter 1.00–1.02/0.45–0.47, femur 1.96–1.97/0.38–0.40, patella 1.73–1.76/0.41–0.42, hand (with pedicel) 1.53–1.55/0.79–0.80, length of movable chelal finger 2.23–2.24, chela 3.62–3.63/0.79–0.80. Leg I: trochanter 0.35–0.39/0.39–0.40, femur 1.22–1.24/0.28– 0.31, patella 0.88–0.91/0.32–0.33, tibia 0.86–0.88/0.20–0.23, basitarsus 0.49–0.51/0.15–0.17, telotarsus 0.63– 0.66/0.14–0.16. Leg IV: trochanter 0.79–0.81/0.27–0.30, femur+patella 1.69–1.72/0.47–0.50, tibia 1.64–1.66/0.28– 0.30, basitarsus 0.69–0.71/0.17–0.19, telotarsus 0.91–0.93/0.14–0.16.
Distribution. China (Guangxi).
description: Published as part of Li, Yun-Chun & Shi, Ai-Min, 2023, Two new species of the pseudoscorpion genus Stenohya (Pseudoscorpiones Neobisiidae) from Guangxi Zhuang Autonomous Region, China, pp. 387-395 in Zootaxa 5278 (2) on pages 388-390, DOI: 10.11646/zootaxa.5278.2.11, http://zenodo.org/record/7906051