Otacilia suining, Shi & Mu & Zhang, 2024

Shi, Songtao, Mu, Yannan & Zhang, Feng, 2024, Description of four new species of Otacilia Thorell, 1897 (Araneae: Phrurolithidae) from southern China, Zootaxa 5447 (4), pp. 513-530 : 522

Otacilia suining sp. nov. (ŘṪff⁂ặ)

Figs 7–9 , 13

Type material. Holotype ♂ ( MHBU), CHINA: Hunan Province: Shaoyang City , Suining Co., Ganchong Vill. (26°29’59.15”N, 110°8’1.12”E, 460 m a.s.l.), 19.11.2023, leg. S. Shi.

Paratypes: 7♀ ( MHBU), with same data as holotype .

Etymology. The specific epithet is derived from the type locality; noun in apposition.

Diagnosis. The new species resembles O. shennongjia Mu & Zhang, 2023 in having a similarly shaped embolus, copulatory openings and connecting tubes, but can be recognized by: 1) tegular apophysis with curved tip (vs straight tip, cf. Fig. 8B–C and fig. 38B–C in Mu & Zhang [2023]), 2) retrolateral tibial apophysis knife-shaped (vs clavate, cf. Fig. 8B–D and fig. 38B–D in Mu & Zhang [2023]), 3) conductor digitiform (vs rectangular, cf. Fig. 8B, C and fig. 38B, C in Mu & Zhang [2023]).

Description. Male (Holotype): total length 3.24, carapace 1.58 long, 1.35 wide; abdomen 1.56 long, 1.09 wide. Eye sizes and interdistances:AME 0.09, ALE 0.09, PME 0.08, PLE 0.10; AME–AME 0.05, AME–ALE 0.02, ALE– ALE 0.27, PME–PME 0.14, PME–PLE 0.08, PLE–PLE 0.40, ALE–PLE 0.11. EAW 0.60, CRW 0.86, EAW/CRW 0.70, CRW/CW 0.64. MOA 0.25 long, anterior width 0.22, posterior width 0.29. CH 0.15, CH /AME 1.67. Labium 0.16 long, 0.21 wide. Sternum 0.91 long, 0.82 wide. Leg measurements: Ⅰ 5.96 (1.69, 0.45, 1.97, 1.22, 0.63), II 4.98 (1.34, 0.38, 1.46, 1.15, 0.65), III 3.92 (1.03, 0.37, 0.89, 1.06, 0.57), IV 6.67 (1.77, 0.44, 1.66, 1.95, 0.85). Spination: femora I–IV d 1, I pl 4, II pl 2, tibiae Ⅰ pv 8 rv 8, II pv 7 rv 7, metatarsi Ⅰ pv 4 rv 4, II pv 4 rv 3.

Coloration. Carapace yellow, with two black longitudinal stripes. Chelicerae with three promarginal and five retromarginal teeth. Sternum longer than wide, shield-shaped. Legs yellow, with black distal annulations near tip of femora, patella and tibiae. Abdomen black, with a pair of triangular yellowish spots anterior beside dorsal scutum, irregular yellowish spots at middle part, and chevron stripe posteriorly; venter with H-shaped mark, three pair of slanting marks ( Fig. 7A–B ).

Palp as in Figs 8A–D , 9A–D . Femoral apophysis well developed, near at middle of femur. Tibia half as long as femur, prolateral tibial apophysis distinct, triangular; retrolateral tibial apophysis as long as tibia, knife-bladeshaped, extending towards cymbium ( Figs 8B ). Tegular apophysis clavate, with a slightly curved tip. Sperm duct distinct, U-shaped. Embolus hook-shaped ( Figs 8B–C , 9B–C ). Conductor digitiform in ventral view ( Figs 8B , 9B ).

Female (paratype): total length 3.58, carapace 1.75 long, 1.60 wide; abdomen 1.80 long, 1.47 wide. Eye sizes and interdistances: AME 0.12, ALE 0.11, PME 0.08, PLE 0.09; AME–AME 0.06, AME–ALE 0.02, ALE–ALE 0.31, PME–PME 0.13, PME–PLE 0.08, PLE–PLE 0.45, ALE–PLE 0.09. EAW 0.62, CRW 0.97, EAW/CRW 0.64, CRW/CW 0.61. MOA 0.27 long, anterior width 0.27, posterior width 0.32. CH 0.13, CH /AME 1.08. Labium 0.21 long, 0.28 wide. Sternum 1.07 long, 0.92 wide. Leg measurements: Ⅰ 6.91 (1.80, 0.52, 2.26, 1.64, 0.69), II 5.79 (1.60, 0.52, 1.67, 1.34, 0.66), III 4.61 (1.33, 0.49, 1.00, 1.15, 0.64), IV 7.71 (2.14, 0.55, 1.89, 2.14, 0.99). Spination: femora I–IV d 1, I pl 4, II pl 3, tibiae Ⅰ pv 8 rv 8, II pv 8 rv 7, metatarsi Ⅰ pv 4 rv 4, II pv 4 rv 3. Other characters as in male, except darker color, wider longitudinal stripes on carapace and absence of dorsal scutum ( Fig. 7C, D ).

Epigyne as in Figs 8E–F , 9E–F . Median septum distinct, anteriorly wider. Copulatory openings round, located anterior, separated by more than two times of spermatheca diameter. Glandular appendages short, mastoid-shaped. Bursae large, covering more than half of epigynal plate, kidney-shaped. Copulatory ducts slanting, slightly longer than wide. Connecting tubes arc-shaped, longer than copulatory ducts. Spermathecae oval, separated about one diameter of spermatheca. Fertilization ducts located at anterior margin of spermathecae.

Distribution. China (Hunan Province).

Figures

FIGURE 7. Habitus of Otacilia suining sp. nov.: A. Male holotype, dorsal view; B. Same, ventral view; C. Female paratype, dorsal view; D. Same, ventral view.

FIGURE 8. Copulatory organs of Otacilia suining 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: E—embolus; C— conductor; FA—femoral apophysis; PTA—prolateral tibial apophysis; RTA—retrolateral tibial apophysis; SD—sperm duct; TA—tegular apophysis; B—bursa; CO—copulatory opening; CD—copulatory duct; CT—connecting tube; GA—glandular appendage; FD—fertilization duct; MS—median septum; S—spermathecae.

FIGURE 9. Copulatory organs of Otacilia suining 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 13. Distribution of the new species described in this paper.