Otacilia dentigera Mu &amp; Zhang 2021, sp. nov.
Creators: name: Mu, Yannan
name: Zhang, Feng
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Phrurolithidae
Otacilia
Otacilia dentigera

description: <i>Otacilia dentigera</i> sp. nov. (小&amp;wcirc;Dzḇü) Fig. 5 <b>Type material.</b> Holotype &amp;male; (SCMX-15-09): CHINA: Sichuan Province, Tibetan Qiang Autonomous Prefecture of Ngawa, Mao County, Maoxian Mountain Ecosystem Research Station of Chinese Academy of Sciences (31°41.539´N, 103°53.809´E, 1885 m), 26 May 2015, leg. Luyu Wang. Paratypes: 2&amp;male; 3&amp;female;, with same data as holotype. <b>Etymology.</b> The specific name is derived from the Latin word “dentigerous”, referring to the small tooth at the base of RTA; adjective. <b>Diagnosis.</b> This new species resembles <i>O. microstoma</i> Wang <i>et al</i>., 2015 in genitalic morphology, but males can be distinguished by the wide base and narrow tip of the RTA (<i>vs</i> narrow base and wide tip) and the thin embolus (<i>vs</i> wider) (compare Fig. 5D–G with fig. 2C–E in Wang <i>et al.</i> 2015). Females are recognized by the long and looped copulatory duct (<i>vs</i> V-shaped) in the female (compare Fig. 5H–I with fig. 2F–G in Wang <i>et al.</i> 2015). <b>Description.</b> Male. Total length 2.70–2.76 (n=3). Holotype: total length 2.74; carapace 1.33 long, 1.13 wide; abdomen 1.41 long, 0.93 wide. Carapace dark yellow, smooth, higher at central area. Radial groove and cervical groove indistinct, fovea dark red. Eye sizes and interdistances: AME 0.06, ALE 0.07, PME 0.07, PLE 0.08; AME– AME 0.06, AME–ALE 0.02, ALE–ALE 0.19, PME–PME 0.12, PME–PLE 0.06; PLE–PLE 0.35, ALE–PLE 0.07. MOA 0.21 long, anterior width 0.18, posterior width 0.25. Clypeal height 0.08. Chelicerae brown, with three promarginal and two retromarginal teeth. Sternum yellow. Legs yellow, with faint black lateral annuli near ends of femora and tibiae. Measurements of legs: I 4.37 (1.15, 0.46, 1.22, 1.00, 0.54), II 3.75 (1.05, 0.43, 0.92, 0.88, 0.47), III 3.28 (0.85, 0.39, 0.65, 0.87, 0.52), IV 4.79 (1.31, 0.44, 1.05, 1.34, 0.65). Spination: femora I–IV d1b except femur III, femur I pl 1111, femur II pl 11, tibia I pv 111111 rv 1111111, tibia II pv 111111 rv 11111, metatarsus I v 2222, metatarsus II pv 1111 rv 111. Abdomen oval, yellow-brown, with large yellow dorsal scutum anteriorly, with two black chevron stripes medially, and three black transverse stripes close to anal tubercle. Palp as in Fig. 5D–G. Femoral apophysis weakly sclerotized, well-developed. RTA medium-sized, triangular, with acicular tip and wide base, with small tooth near base of RTA. Tibia with sclerotized triangular prolateral apophysis (Fig. 5D). Bulb pyriform, sperm duct thick and strongly sclerotized, surrounding central membranous area; tegular apophysis small, blunt; embolus moderately long, slightly curved. Female. Total length 2.95–3.53 (n=3). One paratype: total length 3.53; carapace 1.37 long, 1.22 wide; abdomen 2.16 long, 1.56 wide. Eye sizes and interdistances: AME 0.07, ALE 0.10, PME 0.08, PLE 0.09; AME–AME 0.05, AME–ALE 0.02, ALE–ALE 0.20, PME–PME 0.10, PME–PLE 0.04, PLE–PLE 0.34, ALE–PLE 0.06. MOA 0.22 long, anterior width 0.18, posterior width 0.26. Clypeal height 0.10. Measurements of legs: I 4.67 (1.28, 0.52, 1.35, 1.10, 0.42), II 4.16 (1.10, 0.47, 1.03, 0.98, 0.58), III 3.63 (0.94, 0.43, 0.76, 0.94, 0.56), IV 5.08 (1.41, 0.50, 1.13, 1.38, 0.66). Spination: femora I–IV d1b, femur I pl 1111, femur II pl 11, tibia I pv 111111 rv 1111111, tibia II pv 11111 rv 111111, metatarsus Ⅰ v 2222, metatarsus II pv 1111 rv 111. Abdomen gray, with five black chevron stripes in dorsal view. Other characters as in male, except darker color. Epigyne as in Fig. 5H–I. Epigynal plate sclerotized. Copulatory openings small, close to each other; copulatory ducts long, curved and looping, covered by bursae; glandular appendages short and thin; bursae large, transparent; spermathecae clavate, slanted, close to each other; fertilization ducts short, located at anterior of spermathecae. <b>Distribution.</b> China (Sichuan Province) (Fig. 8).
description: Published as part of <i>Mu, Yannan &amp; Zhang, Feng, 2021, Seven new Otacilia Thorell, 1897 species from China (Araneae: Phrurolithidae), pp. 533-548 in Zootaxa 5032 (4)</i> on pages 541-543, DOI: 10.11646/zootaxa.5032.4.4, http://zenodo.org/record/5497146
description: {"references": ["Wang, L. Y., Chen, H. M., Zhou, K. X., Zhang, F. &amp; Zhang, Z. S. (2015) Diversity of spiders in Fanjing Mountain Nature Reserve, Guizhou, China, I: Six new species of Phrurolithidae (Araneae). Zootaxa, 4012 (3), 447 - 464. https: // doi. org / 10.11646 / zootaxa. 4012.3.2"]}