Otacilia shunhuangshana, Mu & Jin & Zhang, 2022

Mu, Yannan, Jin, Chi & Zhang, Feng, 2022, Description of eight new species of Otacilia Thorell, 1897 from southern China (Araneae: Phrurolithidae), Zootaxa 5134 (2), pp. 238-260 : 253-255

Otacilia shunhuangshana sp. nov. (AṘ山Þffifl)

Figs 10C–D , 13 , 14

Type material. Holotype ♂: CHINA: Hunan Province: Yongzhou City, Dongan County, Damiaokou Town , Shunshan Park (26°24′58.684″N, 111°02′08.473″E, 694 m elev.), 8 Oct. 2015, leg. Chi Jin.

Paratypes: 2♂ 8♀, same data as holotype .

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

Diagnosis. This new species resembles O. hamatus ( Wang, Zhang & Zhang, 2012) by having a similarly shaped DTA, short sperm duct, embolus and small spermathecae (see Figs 13A–B , 14A–B and fig. 9E–F in Wang et al. 2012), but the male can be distinguished by the wide, dagger-shaped RTA, without a hook at the apex in retrolateral view (vs thin, with a small hook at the tip of the RTA, compare Figs 13B , 14B with figs 8C, 9F in Wang et al. 2012), and the short and thin conductor (vs wide and long conductor, compare Figs 13C , 14C with figs 8B, 9G in Wang et al. 2012). Females can be distinguished by the short and wide median septum (vs narrow, compare Fig. 14E with fig. 8D in Wang et al. 2012) and the two horn-shaped copulatory openings (vs coalescent copulatory openings, compare Fig. 14E–F with fig. 8D–E in Wang et al. 2012).

Description. Male: total length 2.21–2.31 (n=3). Holotype ( Fig. 10C ): total length 2.21, carapace 1.19 long, 1.01 wide (CW); abdomen 1.02 long, 0.75 wide. Eye sizes and interdistances: AME 0.06, ALE 0.09, PME 0.06, PLE 0.08; PME–PME 0.06, AME–ALE 0.01, ALE–ALE 0.16, PME–PME 0.07, PME–PLE 0.05, PLE–PLE 0.26, ALE–PLE 0.04. Eye area 0.37 wide (EAW), cephalic region 0.56 wide (CRW), EAW/CRW 0.66. CRW/CW 0.55. MOA 0.16 long, anterior width 0.14, posterior width 0.16. Clypeal height 0.11 ( CH), CH /AME 1.83. Chelicerae with three promarginal and seven retromarginal teeth. Carapace yellow, with black and irregular grid-like line radiating from fovea. Abdomen gray, with small dorsal scutum anteriorly, two triangular black spots beside scutum, and four black transverse stripes posteriorly ( Fig. 10C ).

Palp as in Figs 13A–D , 14A–D . FA in distal half of femur. RTA small and short, dagger-shaped in retrolateral view, with aciculate tip ( Figs 13B , 14B ). DTA thin and long, curved, tip curved towards prolateral side of cymbium ( Figs 13D , 14D ). Tegulum oval, posterior edge round, with small TA distally ( Fig. 14C ). Sperm duct short, located in distal 1/4 of tegulum. Embolus thin, transverse, with wide base and pointed tip. Conductor short and thin, vertical.

Female: total length 2.40–2.68 (n=8). One paratype ( Fig. 10D ): total length 2.60, carapace 1.28 long, 1.07 wide (CW); abdomen 1.32 long, 0.98 wide. Eye sizes and interdistances: AME 0.07, ALE 0.08, PME 0.04, PLE 0.08; AME – AME 0.04, AME – ALE 0.01, ALE – ALE 0.17, PME – PME 0.07, PME – PLE 0.06, PLE – PLE 0.28, ALE – PLE 0.05. Eye area 0.38 wide (EAW), cephalic region 0. 60 wide (CRW), EAW/CRW 0.63; CRW/CW 0.56. MOA 0.15 long, anterior width 0.15, posterior width 0.16. Clypeal height 0.09 ( CH), CH / AME 1.29 . Other characters as for male, except heavier color and larger body size .

Epigyne as in Figs 13E–F , 14E–F . Median septum wide and short ( Figs 13E , 14E ). Copulatory openings hornshaped, located at anterior of septum, separated by about two times diameter of spermathecae ( Fig. 14E–F ). Copulatory ducts thick, transverse, ends curved upwards, connecting with bursa. Bursa large and transparent, nearly rectangular. Connecting tube thin, nearly straight, extending to posterior of spermathecae in ventral view ( Fig. 14E ). Spermathecae oval, small, separated from each other about two times diameter of spermathecae. Fertilization ducts short, located at anterior of spermathecae.

Measurements of legs:

Distribution. China (Hunan Province).

Figures

FIGURE 10. Habitus, male holotype and female paratype. Otacilia triangula sp. nov.: A. Male, dorsal view; B. Female, dorsal view; Otacilia shunhuangshana sp. nov.: C. Male, dorsal view; D. Female, dorsal view; Otacilia subkomurai sp. nov.: E. Male, dorsal view; F. Female, dorsal view; Otacilia xueshanensis sp. nov.: G. Male, dorsal view; H. Female, dorsal view. Red arrow: dorsal scutum.

FIGURE 13. Otacilia shunhuangshan sp. nov.: A. Male left palp, prolateral view; B. same, retrolateral view; C. Same, ventral view; D. same, dorsal view; E. epigyne, ventral view; F. Same, dorsal view.

FIGURE 14. Otacilia shunhuangshan sp. nov.: A. Male left palp, prolateral view; B. same, retrolateral view; C. Same, ventral view; D. same, dorsal view; E. epigyne, ventral view; F. Same, dorsal view. Abbreviations: B—bursa; C—conductor; CD— copulatory duct; CO—copulatory opening; CT—connecting tube; DTA—dorsal tibial apophysis; E—embolus; FA—femoral apophysis; FD—fertilization duct; MS—median septum; PTA—prolateral tibial apophysis; RTA—retrolateral tibial apophysis; S—spermatheca; SD—sperm duct; TA—tegular apophysis. Scale bars: 0.2 mm (A–F).