Otacilia shanxi, Mu & Zhang, 2021

Mu, Yannan & Zhang, Feng, 2021, Seven new Otacilia Thorell, 1897 species from China (Araneae: Phrurolithidae), Zootaxa 5032 (4), pp. 533-548 : 545

Otacilia shanxi sp. nov. (山WDzḇü)

Fig. 7

Type material. Holotype ♂ ( SXLF191020-03 ): CHINA: Shanxi Province, Linfen City, Yichang County, Xiyan Town , Dahe village , Heilong Pool (111°55′16.43″E, 35°26′37.82″N, 1102 m), 20 Oct. 2019, leg. Yannan Mu.

Paratypes: 3♀, with same data as holotype .

Etymology. The species name is derived from the type locality; noun in apposition.

Diagnosis. This new species resembles O. pyriformis Fu, Zhang & Zhang, 2016a , but males can be distinguished from it by the tip of RTA wide and transparent (vs thin and sclerotized) (compare Fig. 7D–G with fig. 3E–H in Fu et al. 2016a). In females, the broad septum separating the anterior fovea into two parts (vs narrow septum) and the thin copulatory duct and small spermathecae (vs thick copulatory duct and large spermathecae) distinguish it from O. pyriformis (compare Fig. 7H–I with fig. 3C–D in Fu, Zhang & Zhang, 2016a).

Description. Male (Holotype). Total length 2.64; carapace 1.28 long, 1.08 wide; abdomen 1.36 long, 0.91 wide. Carapace yellow-brown, higher at central area; with broad longitudinal gray band, slightly wider than eye area. Cervical groove and radial groove indistinct. Eye sizes and interdistances: AME 0.07, ALE 0.06, PME 0.06, PLE 0.09; AME–AME 0.04, AME–ALE 0.02, ALE–ALE 0.18, PME–PME 0.10, PME–PLE 0.06; PLE–PLE 0.34, ALE– PLE 0.07. MOA 0.21 long, anterior width 0.15, posterior width 0.22. Clypeal height 0.11. Chelicerae yellow-brown, with three promarginal and two retromarginal teeth. Sternum black-gray. Legs yellow. Measurements of legs: I 4.60 (1.18, 0.36, 1.29, 1.21, 0.56), II 4.17 (1.11, 0.44, 1.03, 0.99, 0.60), III 3.54 (0.93, 0.40, 0.69, 0.95, 0.57), IV 5.31 (1.43, 0.45, 1.20, 1.46, 0.77). Spination: femur I pl 111, femur II d1b pl 11, femur IV d1b, tibia I pv 1111111 rv 11111, tibia II v 222222, metatarsus I v 2222, metatarsus II pv 1111 rv 111. Abdomen oval, with small yellow dorsal scutum anteriorly, two large irregular spots at middle area, and five black transverse stripes posteriorly.

Palp as in Fig. 7D–G . Femur with large well-developed apophysis at middle. RTA short, laterally flattened in ventral view, base with strong setae, tip triangular and transparent, blunt. Bulb pyriform, sperm duct sclerotized, moderately wide, tapering off close to embolus; embolus moderately short and wide, hook-shaped; conductor short, membranous.

Female. Total length 3.44–4.11 (n=3). One paratype: total length 4.11; carapace 1.59 long, 1.38 wide; abdomen 2.52 long, 1.47 wide. Eye sizes and interdistances: AME 0.08, ALE 0.09, PME 0.07, PLE 0.10; AME–AME 0.05, AME–ALE 0.02, ALE–ALE 0.24, PME–PME 0.10, PME–PLE 0.07, PLE–PLE 0.40, ALE–PLE 0.07; MOA 0.25 long, anterior width 0.20, posterior width 0.26. Clypeal height 0.11. Measurements of legs: I 5.89 (1.48, 0.59, 1.71, 1.43, 0.68), II 3.85 (1.33, 0.48, 1.21, 1.12, 0.71), III 4.19 (1.08, 0.47, 0.88, 1.11, 0.65), IV 6.22 (1.72, 0.48, 1.51, 1.63, 0.88). Spination: femora I–IV d1b except femur I, femur I pl 1111, femur II pl 111, tibia I v 22222222, tibia II v 2222222, metatarsus I v 2222, metatarsus II pv 1111 rv 111. Abdomen black, with two black chevron stripes and three black arc stripes posteriorly. Other characters as in male, except color darker and body size larger.

Epigyne as in Fig. 7H–I . Epigynal plate sclerotized, non-transparent, with large atrium, often filled with plugs, separated by wide septum. Copulatory openings small, far from each other; copulatory ducts thin and long, arcshaped; bursae small, balloon-shaped, transparent; spermathecae oval and small; fertilization ducts short, located anteromesally on spermathecae.

Distribution. China (Shanxi Province) ( Fig. 8).

Figures

FIGURE 7. Otacilia shanxi sp. nov., male holotype and female paratype. A. Male, dorsal view; B. Female, dorsal view; C. Same, ventral view; D. Male left palp, dorsal view; E. Same, prolateral view; F. Same, ventral view; G. Same, retrolateral view; H. Epigyne, ventral view; I. Same, dorsal view. Abbreviations: B—bursa; C—conductor; CD—copulatory duct; CO— copulatory opening; E—embolus; FA—femoral apophysis; FD—fertilization duct; MS—median septum; RTA—retrolateral tibial apophysis; S—spermatheca; SD—sperm duct; TA—tegular apophysis.