Uroctea multiprocessa Yang & Zhang, 2019

Yang, Zi-Zhong, Yang, Zhi-Bin, Zhao, Yu & Zhang, Zhi-Sheng, 2019, Review of the tent-web spider genus Uroctea Dufour, 1820 in China, with descriptions of two new species (Araneae: Oecobiidae), Zootaxa 4679 (1), pp. 126-138 : 132-134

publication ID

https://doi.org/ 10.11646/zootaxa.4679.1.8

publication LSID

lsid:zoobank.org:pub:B2825B2D-BC6D-4928-803D-6593512FB5FC

DOI

https://doi.org/10.5281/zenodo.5942391

persistent identifier

https://treatment.plazi.org/id/2E1087FF-FF9B-6B71-F09D-FB65FEDFFF21

treatment provided by

Plazi

scientific name

Uroctea multiprocessa Yang & Zhang
status

sp. nov.

Uroctea multiprocessa Yang & Zhang View in CoL sp. nov.

Figures 5 View FIGURE 5 , 8 View FIGURE 8

Type material. Holotype male, China, Sichuan Province: Batang County, Xiaqiong Town, Sililong Village , 30°01′22.1ʺN, 99°07′12.0ʺE, elev. 2571 m, 17 Jul. 2016, Zizhong Yang leg. ( SWUC). GoogleMaps

Etymology. The specific name comes from the combination of “ multi -” and “ processus ”, referring to the median apophysis of the male palp with many (five) branches.

Diagnosis. The new species is similar to U. lesserti ( Figs 3–4 View FIGURE 3 View FIGURE 4 ) but can be distinguished by two pairs of small yellow, dark markings on the dorsum of the opisthosoma ( Fig. 5A View FIGURE 5 ) (three pairs and a single white markings in U. lesserti ), a five-branched median apophysis ( Fig. 5E View FIGURE 5 ) (three-branched in U. lesserti ) and inflated base of the conductor ( Fig. 5E View FIGURE 5 ) (not inflated in U. lesserti ).

Description. Male holotype ( Fig. 5A View FIGURE 5 ): total length 7.03; Prosoma 2.82 long, 3.62 wide; Opisthosoma 5.20 long, 3.67 wide. Carapace almost round, brown, edge with short, black-brown setae. Fovea deep and transverse. Cephalic and radial groove distinct. Eye diameters and interdistances: AME 0.27, ALE 0.23, PME 0.21, PLE 0.22; AME–AME 0.07, AME–ALE 0.01, ALE–PLE 0.07, PME–PLE 0.03, PME–PME 0.30. MOA 0.50 long, 0.58 wide. Sternum, labium, endites, palps and legs brownish. Sternum heart-shaped, with dense brown hairs. Labium with almost the same length as width, with dense brown hairs. Endites with a few brown hairs. Legs with some blackbrown hairs. Leg measurements: I 10.28 (3.10, 3.37, 2.42, 1.39); II 10.40 (3.19, 3.29, 2.49, 1.43); III 10.17 (2.79, 3.31, 2.63, 1.44); IV 11.97 (3.24, 3.81, 3.27, 1.65). Leg formula: 4213. Opisthosoma long and oval, black-brown, with two pairs of yellowish markings. Anterior lateral spinnerets red-brown, posterior ones black-brown.

Male palp ( Fig. 5 View FIGURE 5 B–E). Embolus originates prolatero-proximally from the tegulum, its end approaching the end of conductor. Conductor less sclerotized, with inflated base and groove-like anterior part. Median apophysis with five branches, b1 gooseneck-like, originating distally and extending forward, b2 stick-like, with blunt end, b3 short, nodular, approaching the base of conductor, with blunt end, b4 slender, spine-like, originating postero-retrolaterally, and b5 located centrally on median apophysis, short, slightly flattened, with blunt end ( Fig. 5E View FIGURE 5 ). Sperm ducts distinct in prolateral and retrolateral view of genital bulb and ventral view of embolic base.

Female unknown.

Distribution: Known only from the type locality, Batang County of Sichuan, China ( Fig. 8 View FIGURE 8 ).

Biology. The new species was collected from Batang, which has the highest elevation of Sichuan Province, where most of the area is more than 4000 m in elevation. The evolution of this species may be related to the uplift of the Tibet Plateau.

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Oecobiidae

Genus

Uroctea

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