Otacilia daweishan, Liu & Xu & Xiao & Yin & Peng, 2019

Liu, Keke, Xu, Xiang, Xiao, Yonghong, Yin, Haiqiang & Peng, Xianjin, 2019, Six new species of Otacilia from southern China (Araneae: Phrurolithidae), Zootaxa 4585 (3), pp. 438-458 : 441-444

Otacilia daweishan sp. nov.

Figs 3 ̄5

http://zoobank.org/NomenclaturalActs/74dcb404-a4ea-4845-bd2e-e383018dcf5b

Type material. Holotype: ♂: CHINA: Hunan Province, Liuyang City, Daweishan National Forest Park, Niwu village , 28°26'N, 114°02'E, 379 m a.s.l., 14 January 2018, leg. G.C. Zhou, L.Y. Wang and K.K. Liu. Paratypes: 1 ♂, 25 ♀, with same data as holotype ; 8 ♀, CHINA: Hunan Province, Liuyang City, Daweishan National Forest Park, Cherry Valley , 28°25.47'N, 114°05.85'E, 1212 m a.s.l., 13 January 2018, leg. G.C. Zhou, L. Y. Wang and K. K. Liu ; 2 ♀, Same locality, Niwu village , 28°26'N, 114°02.9'E, 286 m a.s.l., 13 January 2018, leg. G.C. Zhou, L. Y. Wang and K. K. Liu ; 1 ♂, 6 ♀, Same locality, Niwu village , 28°26'N, 114°02'E, 379 m a.s.l., 14 January 2018, leg. G.C. Zhou, L. Y. Wang and K. K. Liu ; 2 ♀, Liuyang City, Daweishan Town , 28°27.24'N, 113°57.87'E, 193 m a.s.l., 14 January 2018, leg. G.C. Zhou, L. Y. Wang and K.K. Liu.

Etymology. The specific name refers to the type locality; noun in apposition.

Diagnosis. The new species is similar to O. macrospora Fu, Zhang & Zhang, 2016 in having a stout embolus and a triangular tegular apophysis in the male palp, and by the relative wider median plate, the depressed area and the short copulatory ducts in the female genitalia. It differs from O. macrospora by the relatively longer and stronger RTA in the male palp and by the larger depressed area in the female epigyne (compare Figs 3B ̄D, 4B, C, 5D, E with figs 22̄ 26 in Fu et al. 2016a).

Description: Male. Habitus as in Fig. 3A . Total length 3.07, prosoma yellow-brown ( Fig. 3A ), elevated in dorsal view, with irregular dark grey radial strips and arc-shaped dark strips mediolaterally, length 1.52, width 1.34. Eye diameters: AME 0.08, ALE 0.07, PME 0.08, PLE 0.08; interdistances: AME–AME 0.06, ALĒAME 0.03, PME–PME 0.12, ALĒALE 0.15, PLĒPME 0.27, PLĒPLE 0.19, ALĒPLE 0.07, AMĒPME 0.08. MOA 0.23 long, front width 0.22, back width 0.28. Cervical groove and fovea distinct. Chelicerae yellow-brown, stout, with two strong setae near base in frontal view, abundant hairs around promarginal teeth, three promarginal (proximal largest, distal smallest) and six retromarginal teeth (distal largest, others equal in size). Endites yellowish, longer than wide. Labium as long as wide. Sternum longer than wide, yellowish, setae sparse. Opisthosoma elongate elliptical in dorsal view ( Fig. 3A ), length 1.54, width 0.96, yellow-brown, with pair of small oval and larger triangular yellowish spots medially, pair of triangular yellowish spots anterolaterally, and four narrow chevrons on posterior part; venter yellow, with irregular dark spots near spinnerets; weak dorsal scutum in anterior half, extending slightly past midpoint. Legs yellow, with indistinct annulations on distal part of femora, patellae, tibiae and metatarsi; measurements: I 6.15 (1.68, 0.44, 1.79, 1.44, 0.80); II 5.14 (1.39, 0.45, 1.39, 1.18, 0.73); III 4.16 (1.15, 0.29, 0.98, 1.08, 0.66); IV 7.00 (2.00, 0.51, 1.68, 1.92, 0.89). Leg spination: Femur I and II with one dorsal spine; Femur I pv1111, II pv111; Tibia I v22222222, II v2222222; Metatarsus I v2222, II pv111, rv1111. Leg formula: 4123. Spinnerets yellow, with abundant setae.

Palp ( Figs 3B ̄D, 5ĀC). Femur with a ventral apophysis. RTA large, finger-like, with 6̄10 strong setae located at the base in ventral view, and with a blunt tip. Spermophor dark brown, strongly sclerotized, around the membranous conductor. Tegular apophysis clearly visible, near the base of embolus, large, triangular. Embolus relatively long, with a blunt apex.

Female. Habitus as in Fig. 4A . As in male except as noted. Females lighter than males. Total length 4.10, prosoma length 1.53, width 1.31. Eye diameters: AME 0.09, ALE 0.09, PME 0.07, PLE 0.10; interdistances: AME– AME 0.05, ALĒAME 0.02, PME–PME 0.11, ALĒALE 0.40, PLĒPME 0.07, PLĒPLE 0.49, ALĒPLE 0.09, AMĒPME 0.18. MOA 0.23 long, front width 0.22, back width 0.27. Opisthosoma ( Fig. 4A ) length 2.22, width 1.59, with two pairs of oval yellowish spots on anterior part, three inverted V-shaped yellowish chevrons on posterior part, and oval yellowish stripe near anus in dorsal view. Legs ( Fig. 4A ) without annulations on the distal part of femora, patellae, tibiae and metatarsi; measurements: I 8.03 (2.38, 0.69, 2.73, 1.51, 0.72); II 4.95 (1.37, 0.39, 1.44, 1.03, 0.72); III 4.34 (1.17, 0.42, 1.00, 1.10, 0.65); IV 6.63 (1.89, 0.46, 1.61, 1.78, 0.89). Leg II: Tibia v2222. Leg formula: 1423.

Female ( Figs 4B, C , 5D, E ) with relatively large copulatory openings located centrally and large depressed area in anterior half. Copulatory ducts between copulatory openings and glandular appendage, with pair of large, oval, transparent bursae anteriorly. Glandular appendages short, partly covered by bursae. Connecting tubes short, between glandular appendages and spermathecae. Spermathecae elongated, subtriangular, directed medially. Fertilization ducts short, located apically on spermathecae.

Distribution. Known only from the type locality in Hunan Province, China ( Fig. 16 ).

Figures

FIGURES 3A–D. Otacilia daweishan sp. nov., male holotype. A. Habitus, dorsal view. B. Palp, prolateral view. C. Same, ventral view. D. Same, retrolateral view. Scale bars: A = 0.5 mm; B–D = 0.1 mm.

FIGURES 4A–C. Otacilia daweishan sp. nov., female paratype. A. Habitus, dorsal view. B. Epigyne, ventral view. C. Vulva, dorsal view. Scale bars: A = 1 mm; B, C = 0.1 mm.

FIGURES 5A–E. Otacilia daweishan sp. nov., male holotype and female paratype. A. Palp, prolateral view. B. Same, ventral view. C. Same, retrolateral view. D. Epigyne, ventral view. E. Vulva, dorsal view. Abbreviations: B, bursa; C, conductor, CD, copulatory duct; CO, copulatory opening; CT, connecting tube; E, embolus; FA, femur apophysis; FD, fertilization duct; GA, glandular appendage; MP, median plate; PP, posterior plate; RTA, retrolateral tibial apophysis; SP, spermatheca; SPO, spermophor; TA, tegular apophysis. Scale bars: A̅C = 0.1 mm; D, E = 0.25 mm.

FIGURE 16. Collection localities for Otacilia ailan sp. nov., O. daweishan sp. nov., O. fabiformis sp. nov., O. jiandao sp. nov., O. nonggang sp. nov. and O. yinae sp. nov. in China.