Corresponding authors: Xunyou Yan (
Academic editor: Zhiyuan Yao
Four new species of the genus
Lin Y, Yu L, Koomen P, Yan X, Li S (2022) Taxonomic notes on the genus
The spider genus
Seven
Here, we describe four new and six known
All specimens were preserved in 80% ethanol. Epigynes were cleared in trypsin enzyme solution to dissolve non-chitinous tissues. Specimens were examined under a LEICA M205C stereomicroscope. Photomicroscopy images were taken with an Olympus C7070 zoom digital camera (7.1 megapixels). Laboratory habitus photographs were taken with a Sony A7RIV digital camera equipped with a Sony FE 90mm Goss lens. Photos were stacked with Helicon Focus (v. 7.6.1) or Zerene Stacker (v. 1.04) and processed in Adobe Photoshop CC2019.
All measurements are in millimeters and were obtained with an Olympus SZX16 stereomicroscope with a Zongyuan CCD industrial camera. Total length is measured without chelicerae. Eye sizes are measured as the maximum diameter from either the dorsal or frontal view. Leg measurements are given as follows: total length (femur, patella, tibia, metatarsus, tarsus). The terminology used in the text and figures follows
Types of the new species reported here are deposited at the Institute of Zoology, Chinese Academy of Sciences in Beijing.
Large or medium-sized, male is much smaller than the female (1:2 or more). Prosoma nearly as long as wide, with granulations. Eyes small, subequal in size. Fovea inconspicuous. Chelicerae with two promarginal and one retromarginal teeth. Labium longer than wide, sternum oval, male palp with
1♀ (IZCAS-Ar41642),
See diagnosis of
Epigyne (Fig.
China (Yunnan).
The female is described here for the first time.
2♂ (IZCAS), Xishuangbanna, Jinghong City, Mengla County, Menglun Town, Menglun Nature Reserve, primary tropical seasonal rain forest,
Asia: from India and Sri Lanka to Japan, south to Indonesia. In China is known from Guangxi, Taiwan, and Yunnan.
The species is named after
Male palp (Fig.
Epigyne (Fig.
Known only from the type locality.
1♂(IZCAS-Ar416450),
Males of
Male palp (Fig.
China (Anhui).
The male is described for the first time here.
1♂1♀ (IZCAS),
China, Korea, and Japan. In China it is known from Anhui, Zhejiang.
3♀(IZCAS-Ar41661–Ar41663),
Epigyne (Fig.
China (Yunnan).
The female is reported here for the first time.
2♀ (IZCAS-Ar41669, Ar41670),
See diagnosis of
Male palp (Fig.
China (Guizhou, Yunnan).
The male is reported here for the first time.
The lost type specimen, lack of clear figures of the holotype, and the vague distributional information make further study of the taxonomy of this species impossible. We treat it as
The species is named after Xu Xiake, a Chinese travel writer and geographer of the Ming dynasty; noun (name) in apposition.
Females of
Epigyne (Fig.
Known only from the type locality.
The species is named after Mr Yunhu Mo, who collected the holotype; noun (name) in genitive case.
Females of
Epigyne (Fig.
Known only from the type locality.
The species is named after Mr Zhengzhong Huang, who collected the holotype and paratype; noun (name) in genitive case.
Females of
Distribution records of
Epigyne (Fig.
Known only from the type locality.
The manuscript benefited greatly from comments by Hirotsugu Ono,Yuri Marusik, Zhiyuan Yao. Sarah Crews checked the English. Zhengzhong Huang (IZCAS), Fan Gao (Nanjing, China), and Yunhu Mo (Haikou, China) helped with fieldwork. Fan Gao (Nanjing, China), Chao Wu (Beijing, China), and Ruiyang Wang (Nanjing, China) took the photographs.