Stenohya qianlei Zhao, Guo & Zhang, 2025

Zhao, Jiaqi, Guo, Xiangbo, Gao, Zhizhong & Zhang, Feng, 2025, Review of the pseudoscorpion genus Stenohya Beier, 1967 from China (Pseudoscorpiones, Neobisiidae), European Journal of Taxonomy 993, pp. 1-104 : 79-86

publication ID	https://doi.org/10.5852/ejt.2025.993.2909
publication LSID	lsid:zoobank.org:pub:697E434D-7C75-42BC-9943-367D46743DEB
DOI	https://doi.org/10.5281/zenodo.15555886
persistent identifier	https://treatment.plazi.org/id/ED4EC161-FFC3-FFE5-FE26-FC9BBB76D2D2
treatment provided by	Plazi
scientific name	Stenohya qianlei Zhao, Guo & Zhang
status	sp. nov.

Treatment

Stenohya qianlei Zhao, Guo & Zhang sp. nov. (千乐狭伪$)

urn:lsid:zoobank.org:act:C8ABAA19-DDF2-4A9C-AD27-9E5AB0479B01

Figs 1.5 View Fig , 58–63 View Fig View Fig View Fig View Fig View Fig View Fig , 69P View Fig , 70J View Fig

Diagnosis

Male pedipalpal femur with a thorn in the prolateral position, and with many tubercles mainly surrounding the basal to median area ( Figs 60H View Fig , 61D View Fig ); pedipalpal patella with two small, triangular-shaped projections ( Figs 60G–H View Fig , 61C–D View Fig ). Female pedipalpal femur length 1.68–1.89 mm; patella length 1.26–1.43 mm; pedipalpal femur 4.50–4.92 times as long as broad; and pedipalpal movable chelal finger with 83–85 pointed teeth.

Etymology

The specific epithet is a patronym in honour of Qianle Lu, who provided the marvelous live photos and provided the specimens for study.

Type material

Holotype CHINA • ♂; Chongqing Municipality, Zhuxian township, Putao village ; 31°16′08″ N, 110°04′34″ E; 1445 m a.s.l.; 6 Oct. 2021; Luyu Wang, Xuanwei Zhou, Tianyu Ren, Wenjing Zhao and Lin Xiao leg.; Ps.- MHBU-CQ2021100601 . GoogleMaps

Paratypes CHINA • 4 ♂♂, 7 ♀♀; same collection data as for holotype; Ps.- MHBU-CQ2021100602–12 GoogleMaps • 1 ♂; Chongqing Municipality, Wuxi County, Yintiaoling Nature Reserve ; 31°16′08″ N, 110°04′34″ E; 1445 m a.s.l.; 10 Apr. 2022 ( Fig. 59 View Fig ); Zhisheng Zhang, Luyu Wang, Qianle Lu, Bin Luo, Bing Tan, Xuanwei Zhou, Tianyu Ren, Haoyu Ma and Xiaowei Ma leg.; Ps.- MHBU-CQ2022041001 GoogleMaps .

Description

Adult males (holotype and male paratypes) ( Figs 58A View Fig , 59 View Fig )

CARAPACE ( Figs 60A View Fig , 61A View Fig , 69P View Fig ). Carapace 1.05–1.11 times as long as broad, with a total of 26–32 setae, including 6–7 near anterior margin and 6–8 near posterior margin; five lyrifissures near the eyes, seven lyrifissures near posterior margin; epistome small, triangular, with rounded top; four corneate eyes. Carapace with a slight elevation in the middle of the eye area and a marked elevation near middle of carapace in lateral view.

CHELICERA ( Figs 60B View Fig , 61B View Fig ). Hand with seven setae and two lyrifissures, movable finger with one seta; fixed finger with 13–15 teeth; movable finger with 5–6 teeth; serrula exterior with 40–44 lamellae; serrula interior with 36–38 lamellae; galea developed, divided into two main branches, each branch secondarily divided into three terminal rami ( Fig. 60D View Fig ); rallum consisting of seven blades, all with anteriorly directed spinules, the basalmost blade shortest ( Fig. 60C View Fig ).

PEDIPALPS ( Figs 60G–H View Fig , 61C–D View Fig ).Apex of pedipalpal coxa rounded, with five long setae. Femur with a thorn in the prolateral position and with many tubercles mainly surrounding the basal to median area ( Figs 60H View Fig , 61D View Fig ); patella with two small, triangular projections in the ⅓ and ⅔ prolateral position ( Figs 60H View Fig , 61D View Fig ); chelal hand intumescent in the ventral position, with 15–18 small, triangular, spinous apophyses on the dorsal side, each spinous apophysis with a seta at the base ( Figs 60G–H View Fig , 61C–D View Fig ). Trochanter 1.51–1.63, femur 3.37–4.58, patella 3.68–4.12, chela (with pedicel) 4.42–4.60, chela (without pedicel) 4.15–4.38 times as long as broad, movable finger 1.61–1.77 times as long as hand (without pedicel). Fixed chelal finger with eight, movable chelal finger with four trichobothria: eb and esb situated basally, grouped very closely with ib and isb; est, et and it grouped distally; ist closer to et -est -it than to eb -esb -isb -ib in fixed chelal finger; b and sb situated closer to each other in basal half, st and t close to each other in distal half of movable finger. Venom apparatus present only in fixed chelal finger, venom duct short. Fixed chelal finger with 92–99 pointed teeth, movable finger with 83–85 pointed teeth.

ABDOMEN. Pleural membrane granulated. Tergites and sternites undivided, tergal chaetotaxy (I–XI): 5–6: 7–10: 8–10: 7–10: 8–10:8–11:10–12: 10–12:10–13:10–12: 7–10, sternal chaetotaxy (IV–XI):22– 23: 19–22: 17–21:16–19: 14–16: 13–17: 12–15: 4–8, sternites VI–VIII with 7–11 medial scattered glandular setae, anal cone with two dorsal and two ventral setae. Genital area ( Figs 60G View Fig , 61E View Fig ): anterior genital sternite with 35–45 setae and two lyrifissures; posterior genital sternite with 38–41 setae and two lyrifissures.

LEGS ( Figs 60I–J View Fig , 61F–J View Fig ). Leg I: trochanter 1.43–1.67, femur 4.14–5.61, patella 2.43–3.12, tibia 4.61– 5.22, basitarsus 3.58–4.17, telotarsus 3.67–4.18 times as long as deep. Leg IV: trochanter 2.28–2.65, femur +patella 4.23–5.64, tibia 6.74–7.47, basitarsus 3.80–4.77, telotarsus 6.00–6.83 times as long as deep; tibia with one submedial tactile seta (TS= 0.55–0.57), basitarsus with two tactile setae (TS=0.39– 0.40, 0.85–0.91), telotarsus with two tactile setae (TS =0.20–0.23, 0.53–0.62); subterminal tarsal seta distally branched ( Fig. 60D View Fig ). Arolium not divided, shorter than the slender and simple claws.

Adult females (paratypes) ( Fig. 58B View Fig ) Mostly same as in males, except where noted.

CARAPACE ( Figs 62A View Fig , 63A View Fig , 70J View Fig ). Carapace 0.98–1.03 times as long as broad, with a total of 27–35 setae, including six near anterior margin and 6–8 near posterior margin; six lyrifissures near the eyes, three lyrifissures near posterior margin. Carapace smooth and nearly rectangular.

CHELICERA ( Figs 62B View Fig , 63B View Fig ). Fixed finger with 12–13 teeth; movable finger with 6–7 teeth; serrula exterior with 39–40 lamellae; serrula interior with 34–35 lamellae; galea divided into two main branches, one branch secondarily divided into five terminal rami, the other branch secondarily divided into three terminal rami ( Fig. 62E View Fig ); rallum consisting of eight blades, all with anteriorly directed spinules, the basalmost blade shortest ( Fig. 62C View Fig ).

PEDIPALPS ( Figs 62G–H View Fig , 63C, E View Fig ). Apex of pedipalpal coxa with five long setae. Femur with a few tubercles prolaterally ( Figs 62H View Fig , 63E View Fig ). Trochanter 1.78–2.00, femur 4.50–4.92, patella 3.12–3.43, chela (with pedicel) 3.89–4.27, chela (without pedicel) 3.71–4.09 times as long as broad, movable finger 1.37–1.56 times as long as hand (without pedicel). Fixed chelal finger with 87–94 pointed teeth, movable finger with 78–85 pointed teeth.

ABDOMEN. Tergal chaetotaxy (I–XI): 4–6:6–8: 7–9:8–10: 11: 9–11:10–12: 10–12: 11–13: 10–12: 8–11, sternal chaetotaxy (IV–XI):20–22: 19–23: 16–19: 14–18: 13–18: 13–16:12–15: 4–8, sternites VI–VIII with 2–3 medial glandular setae; genital area ( Figs 62F View Fig , 63D View Fig ): sternite II with a total of 15–17 setae and two lyrifissures; sternite III with a row of 31–40 setae and two lyrifissures.

LEGS ( Figs 62I–J View Fig , 63F–G View Fig ). Leg I: trochanter 1.33–1.87, femur 4.33–5.94, patella 2.95–4.13, tibia 4.81– 5.46, basitarsus 3.07–4.30, telotarsus 4.15–5.60 times as long as deep. Leg IV: trochanter 2.42–2.77, femur +patella 4.11–5.70, tibia 6.36–7.67, basitarsus 3.69–4.46, telotarsus 5.77–7.82 times as long as deep; tibia with two submedial tactile setae (TS=0.69, 0.91), basitarsus with two tactile setae (TS=0.13– 0.15, 0.80–0.85), telotarsus with two tactile setae (TS=0.26–0.31, 0.59–0.61).

Measurements (in mm; length/breadth or, for legs, length/depth)

Males (holotype and paratypes)

Body length 3.35–3.83. Carapace 1.35–1.43/1.26–1.29. Pedipalpal trochanter 0.67–0.72/0.41–0.46, femur 1.65–1.75/0.36–0.49, patella 1.40–1.79/0.34–0.41, chela (with pedicel) 3.16–3.25/0.69–0.73, chela (without pedicel) 2.95–3.03/0.69–0.73, hand (without pedicel) length 2.95–3.03, movable finger length 1.93–2.00. Leg I: trochanter 0.43–0.53/0.30–0.33, femur 0.87–1.06/0.18–0.23, patella 0.68–0.78/0.25–0.28, tibia 0.83–0.94/0.17–0.19, basitarsus 0.43–0.50/0.11–0.12, telotarsus 0.44– 0.50/0.11–0.12. Leg IV: trochanter 0.63–0.70/0.24–0.29, femur +patella 1.55–1.62/0.28–0.32, tibia 1.28–1.44/0.19–0.20, basitarsus 0.57–0.62/0.13–0.15, telotarsus 0.82–0.87/0.12–0.14.

Females (paratypes)

Body length 3.23–4.12. Carapace 1.17–1.31/1.14–1.31. Pedipalpal trochanter 0.73–0.79/0.38–0.43, femur 1.68–1.89/0.37–0.39, patella 1.26–1.43/0.38–0.43, chela (with pedicel) 3.12–3.37/0.75–0.84, chela (without pedicel) 2.96–3.23/0.75–0.84, hand (without pedicel) length 1.21–1.30, movable finger length 1.70–2.03. Leg I: trochanter 0.36–0.44/0.23–0.27, femur 0.78–1.01/0.16–0.22, patella 0.56–0.70/0.15–0.20, tibia 0.71–0.81/0.13–0.16, basitarsus 0.38–0.43/0.10–0.14, telotarsus 0.48– 0.56/0.10–0.13. Leg IV: trochanter 0.68–0.76/0.25–0.30, femur+ patella 1.31–1.67/0.22–0.38, tibia 1.31–1.43/0.18–0.22, basitarsus 0.48–0.58/0.13–0.14, telotarsus 0.74–0.88/0.11–0.13.

Distribution

China: Chongqing City.

Remarks

This new species is similar to S. cordata , S. spinata , S. gibba and S. papillata in the presence of a small, triangular-shaped projection on the male pedipalpal patella of the prolateral face in dorsal view, but can be distinguished by the presence of two small, triangular projections in the ⅓ and ⅔ prolateral position in the patella (in S. cordata , S. gibba , S. papillata , the patella has one small, triangular-shaped projection in the median prolateral position, in S. spinata , the patella has a strong thorn in the median prolateral position, a small projection placed near the base of this thorn) ( Zhan et al. 2023; Zhao et al. 2024). Females of this new species are similar to those of S. biverticis , S. cordata , S. curvata , S. hainanensis , S. guangmingensis , S. gruberi , S. margarita and S. polygonia , but can be distinguished by the pedipalpal femur length 1.68–1.89 mm (2.13 in S. gruberi ); patella length 1.26–1.43 mm (1.72 in S. gruberi ); the pedipalpal femur 4.50–4.92 times as long as broad (5.00– 5.24 in S. curvata ); and the presence of only pointed teeth on the pedipalpal movable chelal finger ( S. biverticis , S. cordata , S. guangmingensis , S. margarita and S. polygonia have rounded teeth at the base and pointed teeth in distal position) ( Ćurčić 1983; Zhao et al. 2011; Guo & Zhang 2016; Zhan et al. 2023; Zhao et al. 2024).