Otacilia anfu Liu sp. nov.

Figs 1, 2, 7A, 8A

Type materials.

Holotype: ♂ (Phu-142), China, Jiangxi Province, Ji’an City, Anfu County, Yangshimu Scenic Spot, Yunzhong Slide Rail, 27°33'04.43"N, 114°15'00.52"E, 1558 m, 3 January 2022, leg. Ke-ke Liu et al. Paratypes: 2 ♂, 1 ♀, same data as holotype (Phu-142).

Etymology.

The specific name derived from Anfu County, where the type locality is situated; it is treated as a noun in apposition.

Diagnosis.

The male of the new species is similar to Otacilia arcuata Mu & Zhang, 2021 in having a large, finger-shaped retrolateral apophysis and swollen tegulum (Mu and Zhang 2021: 543, fig. 6F), but it can be separated from it by the carapace lacking broad dark brown bands around submargin (vs present) (cf. Fig. 1A, B and Mu and Zhang 2021: 543, fig. 6A), the legs lacking brown annulations (vs present) (cf. Fig. 1A, B and Mu and Zhang 2021: 543, fig. 6A), the sharp, spine-like intermediate retrolateral tibial apophysis (vs small and tooth-like) (cf. Fig. 1D-F and Mu and Zhang 2021: 543, fig. 6E, F), and the long, spine-like embolus (vs shorter) (cf. Fig. 1D-F and Mu and Zhang 2021: 543, fig. 6E, F). The female resemble that of O. arcuata in having the spermathecae with an obvious transverse part and slender glandular appendages (Mu and Zhang 2021: 543, fig. 6G, H), but can be separated from it by the relatively long copulatory ducts (vs very short) (cf. Fig. 2C, D and Mu and Zhang 2021: fig. 6G, H) and pair of parallel, sausage-shaped connecting tubes (vs C-shaped) (cf. Fig. 2C and Mu and Zhang 2021: 543, fig. 6G).

Description.

Male (holotype). Habitus as in Fig. 1A, B. Total length 2.84, carapace 1.34 long, 1.20 wide. Eye sizes and interdistances: AME 0.07, ALE 0.10, PME 0.09, PLE 0.08; AME-AME 0.04, AME-ALE 0.01, PME-PME 0.10, PME-PLE 0.04, AME-PME 0.07, AME-PLE 0.15, ALE-ALE 0.19, PLE-PLE 0.35, ALE-PLE 0.07. MOA 0.20 long, frontal width 0.16, posterior width 0.27. Chelicerae with three promarginal and six retromarginal teeth. Sternum (Fig. 1B), nearly as long as wide, posterior end blunt. Leg measurements: I 4.43 (1.22, 0.47, 1.26, 1.05, 0.43); II 3.78 (1, 0.38, 0.93, 0.89, 0.58); III 3.22 (0.91, 0.39, 0.67, 0.86, 0.39); IV 4.78 (1.34, 0.43, 1.01, 1.33, 0.67). Leg spination (Fig. 1A, B): femora I d11, p1111, II d1, p11, III d1, IV d1; tibiae I v222222, II v222222, metatarsi I v2222, II v2221. Abdomen (Fig. 1A, B) 1.41 long, 1.01 wide, dorsal scutum covering more than 1/2 length of abdomen.

Colouration (Fig. 1A, B). Carapace yellow-brown, with radial, irregular, dark yellow-brown mottled markings on surface. Chelicerae, endites and labium yellow-brown. Sternum yellow; lateral margins with dark mottled markings. Legs yellow, without brown annulations. Abdomen brown, with pair of small round and pair of large oval yellow spots on medial dorsal scutum, three pale chevron-shaped stripes on subposterior part, and two yellowish arc-shaped stripes posteriorly; venter with blurred H-shaped and pair of sloping markings posteriorly.

Palp (Figs 1C-F, 7A). Femoral apophysis (FA) well developed, as wide as half of femoral length. Tibia with four apophyses: a n-shaped prolateral apophysis (PTA), relatively broad, with extruding margin; three retrolateral apophyses (RTA): a tooth-like retrolateral apophysis in ventral view, shorter than other two retrolateral apophyses; a small hook-shaped retrolateral apophysis, longer than previous one, but shorter than last one; a large finger-like, thick retrolateral apophysis in retrolateral view, conical in dorsal view, as long as tibial length, medially thickened, apex blunt, bent inwards toward the small cymbial groove (Gr). Bulb broadly oval, with V-shaped sperm duct (SD) in ventral view, apophyses absent. Embolus (Em) spine-like, with a lamellar embolic basal process (EBP).

Female. Habitus as in Fig. 2A, B. Total length 2.97, carapace 1.37 long, 1.21 wide. Eye sizes and interdistances: AME 0.07, ALE 0.09, PME 0.08, PLE 0.09, AME-AME 0.03, AME-ALE 0.01, PME-PME 0.09, PME-PLE 0.05, AME-PME 0.08, AME-PLE 0.15, ALE-ALE 0.19, PLE-PLE 0.36, ALE-PLE 0.07. MOA 0.21 long, frontal width 0.17, posterior width 0.26. Leg measurements: I 4.77 (1.26, 0.51, 1.35, 1.14, 0.51); II 4.03 (1.06, 0.46, 1.01, 0.93, 0.57); III 3.52 (0.93, 0.41, 0.7, 0.93, 0.55); IV 4.94 (1.33, 0.47, 1.12, 1.31, 0.71). Leg spination (Fig. 2A, B): femora femora I d11 p1111, II d1 p11, III d1, IV d1; tibiae I v2222222, II v222222, metatarsi I v2222, II v2222. Pedicel 0.03 long. Abdomen (Fig. 2A, B) 1.65 long, 1.07 wide.

Colouration (Fig. 2A, B). Paler than male.

Epigyne (Fig. 2C, D). Epigynal plate W-shaped through integument, median septum absent. Copulatory openings (CO) anteromedially located, slightly separated. Copulatory ducts (CD) broad, touching, posteriorly with pair of soybean-shaped, transparent bursae laterally. Bursae (Bu) large, bean-shaped, slightly separated, nearly covering 4/5 of epigynal plate. Glandular appendages (GA) very long, located on posterior of copulatory ducts. Connecting tubes (CT) sausage-shaped, separated by half of their length. Spermathecae (Spe) S-shaped, transverse, slightly separated. Fertilisation ducts (FD) short, located at anterior of spermathecae, directed anterolaterally.

Distribution.

Known only from the type locality in Jiangxi Province, China (Fig. 9).