Baiyuerius pindong Zhao, B. Li & S. Li, 2023

Zhao, Zhe, Li, Bing, Zhang, Xiaoqing, Ballarin, Francesco, Pham, Dinh-Sac & Li, Shuqiang, 2023, Baiyuerius gen. nov., a new genus of Coelotinae (Araneae, Agelenidae) spiders from China and Vietnam, ZooKeys 1165, pp. 43-60 : 43

publication ID

https://dx.doi.org/10.3897/zookeys.1165.101946

publication LSID

lsid:zoobank.org:pub:911201F9-8367-4E69-9928-87A6CCC13164

persistent identifier

https://treatment.plazi.org/id/8F9E7DC6-91B2-49B6-A0B2-DE7657E52179

taxon LSID

lsid:zoobank.org:act:8F9E7DC6-91B2-49B6-A0B2-DE7657E52179

treatment provided by

ZooKeys by Pensoft

scientific name

Baiyuerius pindong Zhao, B. Li & S. Li
status

sp. nov.

Baiyuerius pindong Zhao, B. Li & S. Li sp. nov.

Figs 3 View Figure 3 , 8 View Figure 8

Type material.

Holotype ♂ (IZCAS-Ar44392) (LB172): China: Guangdong Province: Qingyuan City: Yangshan County, Shuikou Ancient Town, Pindong Village, 24.3987°N, 112.7433°E, elevation: 553 m, 8.I.2019, Z. Zhao and Z. Chen leg.

Etymology.

The new species is named after the type locality, the Pindong Village; noun in apposition.

Diagnosis.

Baiyuerius pindong sp. nov. can be distinguished from the other congeners of this new genus as follows: 1) cymbial furrow less than 1/2 the length of cymbium (Fig. 3C View Figure 3 ) vs. more than 1/2 in others (Figs 5C View Figure 5 , 6C View Figure 6 ); 2) cymbial base with two hypophyses (Fig. 3C View Figure 3 ) vs. only one in others (Figs 5C View Figure 5 , 6C View Figure 6 ); and 3) lateral tibial apophysis concave and large, wider than long (Fig. 3C View Figure 3 ) vs. finger-like, longer than wide in others (Figs 5C View Figure 5 , 6C View Figure 6 ).

Description.

Male (holotype). Total length 10.06. Carapace 5.42 long, 3.53 wide. Abdomen 4.64 long, 2.96 wide. Eye sizes and interdistances: AME: 0.12, ALE: 0.15, PME: 0.15, PLE: 0.15; AME-AME: 0.06; AME-ALE: 0.09; AME-PME: 0.07; ALE-PLE: 0.04; PME-PME: 0.04; PME-PLE: 0.15. Leg measurements: I: 17.13 (2.01, 0.76, 4.13, 1.74, 3.06, 3.17, 2.26); II: 15.78 (1.89, 0.75, 3.59, 1.73, 2.76, 3.14, 1.92); III: 13.52 (1.57, 0.74, 3.14, 1.34, 1.92, 3.12, 1.69); IV: 17.96 (1.78, 0.81, 4.43, 1.76, 3.14, 4.12, 1.92). Leg formula 4> 1> 2> 3. Carapace black turning dark brown, chelicerae, endites, and labium dark brown, sternum brown, longer than wide, spinnerets yellow-brown, legs dark brown turning yellow-brown. Male palp (Fig. 3 View Figure 3 ): femur long, c. 4 times longer than wide, tibia long, c. 2 times longer than wide, patella short, length only 1/3 of width, patellar apophysis dark brown, c. 3 times longer than wide, extending over half of tibia, with a blunt and bent distal end, retrolateral tibial apophysis originating from 1/3 of tibia, lateral tibial apophysis enlarged, human-ear-like, median apophysis spoon-shaped, cymbial furrow subequal to 1/2 the length of cymbium, cymbial base with two hypophyses, embolus originating at a 7 o’clock, widen, narrowing in the second half, then wrapped by conductor, embolic base black, 2 times longer than wide, conductor translucent, with wrinkles, while its margin jagged and transparent, dorsal apophysis of conductor black and strongly expanded, leaf-like, with a jagged margin.

Female. Unknown.

Distribution.

Guangdong Province, China (Fig. 8 View Figure 8 ).

Kingdom

Animalia

Order

Araneae

Family

Agelenidae

Genus

Baiyuerius