Published December 31, 2022 | Version v1
Taxonomic treatment Open

Priscaleclercera foshou Jiang & Li 2022, sp. nov.

  • 1. College of Life Science, Shenyang Normal University, Shenyang 110034, Liaoning, China & Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw 05282, Myanmar Corresponding authors, E-mails: yaozy @ synu. edu. cn; lisq @ ioz. ac. cn
  • 2. Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
  • 3. College of Life Science, Shenyang Normal University, Shenyang 110034, Liaoning, China

Description

Priscaleclercera foshou Jiang & Li, sp. nov. (Figs 19–21)

Holotype. Male (IZCAS-Ar42690Fo). Late Cretaceous amber from Hukawng Valley. Syninclusions include two dipterans, one mite, and one diplopod.

Etymology. The specific name is derived from the Chinese pinyin word for “Buddha’s hand” (foshou), referring to the shape of the palpal bulb; noun in apposition.

Diagnosis. The new species can be distinguished from all other Priscaleclercera species by the shape of the palp: the proximal parts of sclerites 1 and 2 are fused; sclerite 1 has a forked tip; sclerite 2 has a serrated margin; sclerite 3 has a membranous apex.

Description. Male. Total length 1.80; carapace 0.56 long, 0.67 wide; opisthosoma 1.24 long, 0.67 wide. Left palp: 0.97 (0.39 + 0.24 + 0.34), left leg I absent, leg II: - (2.38 + 0.22 + 2.41 + - + -), leg III: 4.61 (1.42 + 0.20 + 1.27 + 1.23 + 0.49), leg IV: - (2.15 + 0.19 + - + - + -); right palp: 0.86 (0.36 + 0.15 + 0.35), right leg I: - (- + - + - + 2.37 + 0.80), leg II: - (2.34 + - + - + 2.15 + 0.74), legs III –IV absent. Eye sizes and interdistances: ALE 0.07, PLE 0.05, PME 0.07, PLE–PME 0.04. Habitus as in Figs 20A–B. Carapace (Fig. 20B) oval, wider than long, yellowish; clypeus brown, slanted; chelicerae with lamina, promargin with two teeth; six eyes (Fig. 20D) almost ovoid, ALE = PME> PLE; labium 0.23 long, slanting; sternum yellow, 0.54 long, 0.51 wide. Abdomen (Figs 20A–B) elongate. Anterior lateral spinnerets (Figs 20A–B) cylindrical, with three segments.

Palp (Figs 19A–C, 21). Femur (Fig. 19C) has at least four short macrosetae ventrally; cymbium longer than wide, with dense brown setae; cymbium with three macrosetae: a long, curved retrolateral one with a hook, and two preapical, short, subconical ones. The bulb has a finger-shaped apophysis and three sclerites apically. Sclerite 1 forked, appressed to sclerite 2. Sclerite 2 elongate, serrated apically. Sclerite 3 with a membranous apex.

Notes

Published as part of Xin, Yafei, Jiang, Tongyao, Yao, Zhiyuan & Li, Shuqiang, 2022, Twenty new spider species (Arachnida: Araneae) from Late Cretaceous Kachin amber (Myanmar), pp. 1-65 in Zoological Systematics 47 (1) on pages 24-27, DOI: 10.11865/zs.2022101, http://zenodo.org/record/7176146

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Additional details

Biodiversity

Family
Psilodercidae
Genus
Priscaleclercera
Kingdom
Animalia
Order
Araneae
Phylum
Arthropoda
Scientific name authorship
Jiang & Li
Species
foshou
Taxonomic status
sp. nov.
Taxon rank
species
Type status
holotype
Taxonomic concept label
Priscaleclercera foshou Jiang & Li, 2022