Yunohamella mohorovicici R. Zhong, J. Liu & Hu 2025, sp. nov.
Creators: name: Zhong, Rui
name: Zhong, Yang
name: Zhang, He
name: Liu, Jie
name: Liu, Changyong
name: Chen, Kuai
name: Hu, Changhao
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Theridiidae
Yunohamella
Yunohamella mohorovicici

description: Yunohamella mohorovicici R. Zhong, J. Liu & Hu sp. nov.
Figs 3, 4, 10
Type material.
Holotype • male: China, Hubei Province: Enshi Tujia and Miao Autonomous Prefecture, Xuan’en County, Qizimeishan National Nature Reserve, Changtanhe Dong Autonomous Town, Qizimeishan mountain; 30.03 ° N, 109.73 ° E; elev. 1270 m; 6 July 2023; Changhao Hu & Mian Wei leg. (CBEE, QZMS 04642).
Etymology.
The species is named after the geophysicist “ Andrija Mohorovičić ” who found the “ Moho discontinuity ”, the boundary between the crust and the mantle of Earth.
Diagnosis.
Males of Y. mohorovicici sp. nov. are similar to those of Y. jiugongensis (Liu & Zhong, 2023) comb. nov. (compare Fig. 4 A – C with Fig. 5 C – E) in having an n-shaped sperm duct on the tegulum and a thick, curved embolus, but Y. mohorovicici can be distinguished from Y. jiugongensis by the following: sharp tooth-like apophysis on tegulum absent; and terminal conductor rounded (vs apophysis on tegulum present and terminal conductor knife-shaped in Y. jiugongensis comb. nov.). Males of Y. mohorovicici sp. nov. are also similar to those of Y. palmgreni (Marusik & Tsellarius, 1986) (compare Fig. 4 A – C with Marusik and Tsellarius 1986: figs 1, 2) in having an n-shaped sperm duct on the tegulum and a thick embolus, but Y. mohorovicici can be distinguished from Y. palmgreni by the following: conductor arising from the retrolateral part of the tegulum at the 2 o’clock position; and embolus curved (vs conductor arising from retrolateral part of the tegulum at the 12 o’clock position and embolus straight in Y. palmgreni). Females are unknown.
Description.
Male (holotype), measurements: total length 1.77. Carapace 0.96 long, 0.77 wide. Abdomen 0.88 long, 0.65 wide. Eyes: AME 0.11, ALE 0.08, PME 0.07, PLE 0.07, AME – AME 0.06, AME – ALE 0.03, PME – PME 0.05, PME – PLE 0.08, AME – PME 0.05, ALE – PLE 0.01. Measurements of legs: I 6.80 (2.05, 0.37, 1.78, 1.92, 0.68), II 4.15 (1.29, 0.27, 0.99, 1.09, 0.51), III 2.70 (0.89, 0.19, 0.55, 0.67, 0.40), IV 3.66 (1.21, 0.25, 0.81, 0.95, 0.44). Leg formula: I-II-IV-III.
Carapace round, brown, with deep fovea and black radial furrow. Sternum shaped like an inverted triangle and brown. Labium brown. Chelicerae and endites orange. Legs yellow. Abdomen oval, with long hairs; dorsum black, with a longitudinal mark composed of white and red spots; venter brownish green; anterior part of spinnerets black; lateral abdomen with several white spots. Spinnerets brown (Fig. 3 A – C).
Cymbium reniform. Cymbial hood tilted at 60 °, almost ¼ length of cymbium. Subtegulum bowl-shaped. Tegulum with a narrow prolateral part and a large retrolateral part; retrolateral part with a thin area that holds embolic base; sperm duct narrowly n-shaped. Median apophysis small, almost ½ length of tegular apophysis. Tegular apophysis large, knife-shaped; length of tegular apophysis almost as long as width of bulb. Conductor sclerotized, with smooth end. Embolus corn-like, thick, and curved, with a tooth-shaped base (Fig. 4 A – D).
Female. Unknown.
Distribution.
Known only from the type locality (Fig. 10).
description: Published as part of Zhong, Rui, Zhong, Yang, Zhang, He, Liu, Jie, Liu, Changyong, Chen, Kuai & Hu, Changhao, 2025, Taxonomic notes on the genus Yunohamella Yoshida, 2007 (Araneae, Theridiidae) from China, with two new species, pp. 69-85 in ZooKeys 1224 on pages 69-85, DOI: 10.3897/zookeys.1224.138987