Friday, April 19, 2024

[Arachnida • 2024] Sinahahnia eyu, S. fanjingshan & S. yintiaoling • A New Genus and Three New Species of Hahniidae (Araneae) from China


Sinahahnia eyu 
Wang & Zhang, 2024


Abstract
A new genus of comb-tailed spider (Hahniidae), Sinahahnia gen. nov., is described based on three new species from the high-altitude areas of China: Sinahahnia eyu sp. nov. (♂♀, Chongqing and Hubei), S. fanjingshan sp. nov. (♂♀, Guizhou), and S. yintiaoling sp. nov. (♀, Chongqing). Digital images, illustrations, and a distribution map are provided.

Key words: Comb-tailed spider, description, morphology, taxonomy, Wuling Mountains


Living male specimen of Sinahahnia eyu sp. nov.
 (photo by Qian-Le Lu).

Sinahahnia eyu sp. nov.
 A, C–E holotype male B, F, G paratype female A male habitus, dorsal view B female habitus, dorsal view C left male palp, ventral view D same, retrolateral view E same, dorsal view F epigyne, ventral view G same, dorsal view.

Family Hahniidae Bertkau, 1878

 Sinahahnia gen. nov. 
Type species: Sinahahnia eyu sp. nov.

Etymology: The generic name is a compound noun derived from the Latin sinae (= the Chinese) and ‘-Hahnia’.

Diagnosis: Species of Sinahahnia gen. nov. resemble those of Troglohnia in having a similar slender embolus, large and membranous median apophysis, short and strong patellar apophysis, and long, spiral copulatory ducts, but they differ by the long embolus originating at a 6-o’clock position (vs 3-o’clock in Troglohnia), the large membranous median apophysis originating from the prolateral part of the tegulum (vs retrolateral in Troglohnia), RTA not bifurcated (vs bifurcated in Troglohnia) (Figs 2A–C, 3C–E, 5A–C, 6C–E cf. Chu et al. 2023: figs 3C, 10A, B, 12A, B, 15A, B), and the peanut-shaped or spherical spermathecae of the epigyne (vs oval in Troglohnia) (Figs 2E, 3G, 4C, 5E, 6G, 7B, 8C cf. Chu et al. 2023: figs 11B, 13B, 14B, 16B).


 Sinahahnia eyu sp. nov.

Etymology: The specific name is derived from the Chinese word ‘e’ and ‘yu’, E is an abbreviated name for Hubei and Yu is an abbreviated name for Chongqing.

 Sinahahnia fanjingshan sp. nov.

Etymology: The specific name is derived from the type locality [Fanjingshan Nature Reserve in Guizhou, China]; it is a noun in apposition.

 Sinahahnia yintiaoling sp. nov.

Etymology: The specific name is derived from the type locality [Yintiaoling Nature Reserve, in Chongqing, China]; it is a noun in apposition.


  Lu-Yu Wang and Zhi-Sheng Zhang. 2024. A New Genus and Three New Species of Hahniidae (Araneae) from China. ZooKeys. 1197: 249-259. DOI: 10.3897/zookeys.1197.119935