Ectatosticta xuanzang, Lin & Li, 2020

Lin, Yejie & Li, Shuqiang, 2020, Taxonomic studies on the genus Ectatosticta (Araneae, Hypochilidae) from China, with descriptions of two new species, ZooKeys 954, pp. 17-29 : 17

publication ID	https://dx.doi.org/10.3897/zookeys.954.52254
publication LSID	lsid:zoobank.org:pub:87E95E81-6453-4851-8F74-1601C77F244B
persistent identifier	https://treatment.plazi.org/id/3A050541-598F-4349-8B86-C21E11F5B0CB
taxon LSID	lsid:zoobank.org:act:3A050541-598F-4349-8B86-C21E11F5B0CB
treatment provided by	ZooKeys by Pensoft
scientific name	Ectatosticta xuanzang
status	sp. nov.

Treatment

Ectatosticta xuanzang View in CoL sp. nov. Figs 5D View Figure 5 , 6G-K View Figure 6 , 7C, D View Figure 7 , 8 View Figure 8

Type material.

Holotype ♀(IZCNS-Ar40373), China, Tibet Autonomous Region, Lhoka, Cona County, Marmang, Lebugou, Yelang Valley, 27.8682N, 91.8110E, elevation ca. 3118 m, 12.X.2019, Yejie Lin leg. Paratypes 5♀ (IZCNS-Ar40374-Ar40378), same data as holotype.

Etymology.

The species is named after Xuanzang, a character in the classic Chinese novel Journey to the West, noun.

Diagnosis.

Females of E. xuanzang sp. nov. can be distinguished by the ratio of the length of the inner spermathecae to the outer spermathecae of almost 1:3 (Figs 5D View Figure 5 , 6G-K View Figure 6 ) (vs. almost 1:1 in E. davidi and 1:2 to 1:1 in E. deltshevi (Figs 5A, B View Figure 5 , 6A-C, F View Figure 6 )) and the ratio of leg I length to the carapace length is almost 1:8 (vs. almost 1:6 in E. wukong sp. nov. and E. deltshevi and 1.7 in E. davidi ).

Description.

Female. Total length 12.59, carapace 6.03 long, 3.60 wide, opisthosoma 6.22 long, 4.40 wide. Eye sizes and interdistances: AME 0.15, ALE 0.31, PME 0.29, PLE 0.28, AME-AME 0.19, AME-ALE 0.37, PME-PME 0.42, PME-PLE 0.27, AME-PME 0.07, ALE-PLE 0.06. Clypeus height 0.45. Chelicerae with seven (n = 3) or eight (n = 3) promarginal and 6-9 (6(n = 1), 7(n = 4), 9(n = 1)) retromarginal teeth. Leg measurements: Leg I: 51.47 (15.45 + 16.28 + 12.95 + 6.79), leg II: 47.88 (14.03 + 16.22 + 11.60 + 6.03), leg III: 37.66 (11.67 + 12.50 + 9.04 + 4.45), leg IV: 44.23 (12.31 + 14.49 + 12.11 + 5.32). Leg formula: 1243.

Female genitalia (Figs 5D View Figure 5 , 6G-K View Figure 6 ) simple, with two pairs of slightly curved spermathecae. Inner spermathecae small, outer spermathecae curved, three times the length of inner spermathecae.

Male.

Unknown.

Distribution.

Known only from the type locality.

National history.

In damp rocky areas, hiding between huge stones. They build simple sheet webs without a tube-retreat.