Dolichognatha yue Lin &amp; Li 2022, sp. nov.
Creators: name: Lin, Yejie
name: Zhao, Huifeng
name: Koh, Joseph K H
name: Li, Shuqiang
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Tetragnathidae
Dolichognatha
Dolichognatha yue

description: <i>Dolichognatha yue</i> Lin &amp; Li, sp. nov. (Figs 52–55) Diagnosis. Males of this species are similar to <i>D. umbrophila</i> Tanikawa, 1991 by the slender embolus and curved ectobasal cymbial process. Females have wide copulatory duct. However, this new species can be distinguished by having the base and the end of the embolus with the same thickness (<i>vs.</i> base of embolus significantly thicker than the end in <i>D. umbrophila</i>) and the ectobasal cymbial process is directed laterally (<i>vs.</i> directed ventrally in <i>D. umbrophila</i>). Females can be distinguished by the terminus of the spermatheca directed laterally (<i>vs.</i> directed dorsally in <i>D. umbrophila</i>). Description. Male (holotype, Fig. 54A). Total length 2.05. Carapace 1.11 long, 0.75 wide. Abdomen 0.97 long, 0.88 wide. Dorsum of carapace yellow-brown, with grey-brown markings. Cervical groove distinct. Eye sizes and interdistances: AME 0.13, ALE 0.11, PME 0.08, PLE 0.08, AME–AME 0.05, AME–ALE 0.01, PME–PME 0, PME–PLE 0.04, ALE–PLE 0.04. Chelicerae long and strong, brown, with 3 promarginal and 4 retromarginal teeth. Gnathocoxae and labium brown. Sternum yellow-brown, with sparse black setae. Legs yellow-brown, with black pigmentation. Leg measurements: I 4.14 (1.27, 1.41, 0.98, 0.48), II 3.37 (1.07, 1.14, 0.77, 0.39), III 1.96 (0.63, 0.62, 0.39, 0.32), IV 2.25 (0.79, 0.66, 0.51, 0.29). Leg formula 1243. Abdomen oval. Both dorsum and venter brown, with black pattern. Palp (Fig. 52). Embolus slender, basal part resting in groove of conductor. Conductor large. Paracymbium small and oval, with long setae. Ectobasal cymbial process hook-like, widest basally. Female (IZCAS-Ar43321, Figs 54B–C). Total length 2.12. Carapace 1.02 long, 0.75 wide; Abdomen 0.97 long, 0.88 wide. Eye sizes and interdistances: AME 0.11, ALE 0.10, PME 0.08, PLE 0.08, AME–AME 0.04, AME–ALE 0.03, PME– PME 0, PME–PLE 0.09, ALE–PLE 0.04. Chelicerae with 2 promarginal teeth. Leg measurements: I 3.61 (1.14, 1.19, 0.84, 0.44), II 3.13 (1.02, 1.02, 0.71, 0.38), III 1.76 (0.62, 0.51, 0.37, 0.26), IV 2.22 (0.80, 0.66, 0.48, 0.28). Habitus similar to that of male. Epigynum (Fig. 53). Atrium oval. Spermatheca small and chambered. Fertilization ducts small, close to each other, directed laterally. Material examined. Holotype &amp;male; (IZCAS-Ar43318), China: Guangdong, Guangzhou City, Yuexiu District, Yuexiu Park (23.1394°N, 113.2660°E, elev. 20 m), 20 September 2021, T. Jiang leg. Paratypes. 1&amp;male; 2&amp;female; (IZCAS-Ar43319–Ar43321), same data as holotype. Distribution. Known only from the type locality. Etymology. The specific name is a noun in apposition taken from the type locality.
description: Published as part of <i>Lin, Yejie, Zhao, Huifeng, Koh, Joseph K H &amp; Li, Shuqiang, 2022, Taxonomy notes on twenty-eight spider species (Arachnida: Araneae) from Asia, pp. 198-270 in Zoological Systematics 47 (3)</i> on pages 259-260, DOI: 10.11865/zs.2022303, http://zenodo.org/record/7175859