Published December 31, 2017 | Version v1
Taxonomic treatment Open

Relictocera qiyi Li & Li 2017, sp. nov.

  • 1. College of Life Science, Shenyang Normal University, Shenyang, Liaoning 110034, China & Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw 05282, Myanmar
  • 2. Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
  • 3. Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China & University of Chinese Academy of Sciences, Beijing 100049, China Corresponding author, E-mail: zhengguo @ synu. edu. cn
  • 4. College of Life Science, Shenyang Normal University, Shenyang, Liaoning 110034, China

Description

Relictocera qiyi Li & Li, sp. nov. (Figs 7–8, 15)

Material examined. Holotype male, Vietnam, Thua Thien Hue Province, Bach Ma National Park, Da Dung Village (16º13.203’N, 107º52.944’E; elev. 69m), 26 August 2015, leg. Q. Zhao, Y. Li & Z. Chen. Paratypes. 1 male, 2 females, same data as holotype (IZCAS).

Etymology. The species name is a noun in apposition derived from the Chinese pinyin "qíyì" ("strange") and refers to the unique trifurcate projection on the male clypeus.

Diagnosis. The male of this species is easily recognized by the distinctly slender elongate cymbial protrusion, the bifurcate conductor, and the flat embolus. The female is diagnosed by the single pair of slender elongate spermathecae.

Description. Male (holotype). Total length 2.63; carapace 0.65 long, 0.76 wide; abdomen 1.36 long, 0.56 wide. Carapace round, yellow, with three longitudinal brown bands of which middle band 3–4 times wider than laterals (Fig. 8C). Fovea shallow, dark brown. Anterior margin of thoracic region distinctly elevated. Chelicerae light yellow. Cheliceral promargin with dentoid lamina and no teeth, retromargin with one small denticle, posterior surface of fang with 19 small denticles. Clypeus light yellow, slanting with trifurcate projection medially and two horn-like projections basally (Figs 8 C– D). Labium yellow, slanting. Sternum yellow, with a pair of irregular brown bands. Abdomen elongate, yellow, with brown bands dorsally and ventrally. Legs brown, femur and tibia each with white annulation; measurements: I 13.12 (3.60, 0.28 3.88, 4.30, 1.06), II 8.85 (2.50, 0.27, 2.49, 2.78, 0.81), III 6.99 (2.00, 0.27, 2.05, 2.02, 0.65), IV 6.83 (1.98, 0.28, 1.88, 2.02, 0.67). Palp (Figs 7 A–D): tibia and cymbium slender; tibia distinctly more than twice as long as cymbium; cymbium with slender apical protrusion nearly as long as cymbium; bulb yellow, oval; embolus flattened, conductor bifurcate, embolus and conductor both arising distally from bulb but separated basally.

Female. Similar to male in coloration and general features, but slightly smaller and lacking trifurcate clypeal projection. Measurements: total length 2.10; carapace 0.63 long, 0.70 wide; abdomen 1.34 long, 0.76 wide. Leg measurements: I 10.56 (2.75, 0.25, 3.06, 3.44, 1.06), II 6.77 (1.82, 0.25, 1.92, 2.00, 0.78), III 5.14 (1.40, 0.23, 1.41, 1.48, 0.62), IV 8.39 (2.25, 0.25, 2.40, 2.61, 0.88). External genitalic area with pair of translucent lobes laterally (Fig. 8B). Vulva with pair of slender elongate spermathecae (Fig. 8A).

Distribution. Known only from the type locality (Fig. 15).

Notes

Published as part of Liu, Chang, Li, Fengyuan, Li, Shuqiang & Zheng, Guo, 2017, Five new genera of the subfamily Psilodercinae (Araneae: Ochyroceratidae) from Southeast Asia, pp. 395-417 in Zoological Systematics 42 (4) on pages 403-408, DOI: 10.11865/zs.201717, http://zenodo.org/record/5585652

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Additional details

Biodiversity

Collection code
IZCAS
Event date
2015-08-26
Verbatim event date
2015-08-26
Scientific name authorship
Li & Li
Kingdom
Animalia
Phylum
Arthropoda
Order
Araneae
Family
Psilodercidae
Genus
Relictocera
Species
qiyi
Taxon rank
species
Taxonomic status
sp. nov.
Type status
holotype , paratype
Taxonomic concept label
Relictocera qiyi Li & Li, 2017