Asceua calciformis Li & Liu & Peng 2022, sp. nov.
Creators: name: Li, Song-Lin
name: Liu, Ping
name: Peng, Xian-Jin
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Zodariidae
Asceua
Asceua calciformis

description: Asceua calciformis sp. nov.
Figures 1–3, 9
Type material. Holotype ♂: CHINA, Yunnan Province, Tengchong County: Jietou Township, Datang Village, 25.73947ºN, 98.69630ºE, 2010 m, 16 May 2006, D. H. Kavanaugh and R. L. Brett leg. (DHK-2006-025C-01). Paratypes: 1♂ 2♀, same data as holotype (DHK-2006-025C-02); 1♂ 2♀, Jietou Township, Datang Village, Longtang River, papaya orchard, 25.75720°N, 98.69459°E, 2078 m, 16 May 2006, X. J. Peng, X. P. Wang and P. Hu leg. (Peng060516); 1♂ 1♀, Longjiang Township, Xiaoheishan Nature Reserve, 24.82888°N, 98.76001°E, 2020 m, 26 May 2005, C. Griswold and D. H. Kavanaugh leg. (CGY127).
Etymology. The specific epithet is the combination of the Latin “ calceamen ” (shoe) and “ formis ” (form), referring to the shoe-shaped median apophysis, adjective.
Diagnosis. The males of this new species resembles that of A. adunca Zhang & Zhang, 2018 (see Zhang & Zhang, 2018a, figs 1–3) in having similar embolic course, but can be distinguished by: (1) RTA longer than VTA, distal end bifurcated in retrolateral view in A. calciformis sp. nov. (Fig. 2B) (vs. RTA as long as VTA, distal end not bifurcated); (2) median apophysis shoe-shaped in ventral view in A. calciformis sp. nov. (Fig. 2C) (vs. hookshaped); (3) conductor terminal expanded in retrolateral view in A. calciformis sp. nov. (Fig. 2B) (vs. not expanded). The females of this new species resembles that of A. maculosa Logunov, 2010 (see Logunov, 2010: figs 4, 5), A. menglun Song & Kim, 1997 (see Song & Kim, 1997, figs 9, 10) and A. similis Song & Kim, 1997 (see Song & Kim, 1997, figs 14, 15) in having similar course of copulatory ducts, but can be easily distinguished from them by epigyne without atrium in A. calciformis sp. nov. (Fig. 3A) (vs. with atrium).
Description. Male (holotype) (Fig. 1A, B). Total length 3.06; carapace 1.61 long, 1.32 wide; abdomen 1.43 long, 1.10 wide. Carapace brown, with a V-shaped dark patch medianly; fovea and radial grooves distinct, cervical grooves indistinct. Clypeus 0.46 high. Eye sizes and interdistances: AME 0.06, ALE 0.06, PME 0.08, PLE 0.11; AME–AME 0.03, AME–ALE 0.05, PME–PME 0.09, PME–PLE 0.14, MOA 0.33 long, anterior width 0.15, posterior width 0.24. Chelicerae brown, with two promarginal teeth and with one retromarginal tooth. Endites yellow. Labium yellowish brown, triangular. Sternum yellowish brown, edge slightly darker. Legs pale yellow. Measurements of legs: I, 5.14 (1.39, 1.69, 1.30, 0.76); II, 4.26 (1.24, 1.32, 1.06, 0.64); III, 4.22 (1.18, 1.33, 1.11, 0.60); IV, 5.97 (1.66, 1.79, 1.77, 0.75). Leg formula: 4123. Abdomen oval, dorsum black, anterior portion with two pairs of light patches medianly, posterior portion with three transversal light bands medianly; venter yellow, with a dark chevron posteriorly and one pair of dark patches laterally. Spinnerets pale yellow.
Palp (Fig. 2). Tibia with two apophyses; VTA trifurcate, all rami with blunt tip; RTA much longer than wide, distal end with two protuberances, forcipate, dorsal side with two small teeth. Median apophysis shoe-shaped, with acerose upper ramus and wide lower ramus. Conductor membranous and overlapped with distal portion of embolus, with expanded tip and a tooth basally. Embolus slender and whip-shaped, extending clockwise.
Female (one paratype of DHK-2006-025C-02) (Fig. 1C, D). Total length 4.13; carapace 1.79 long, 1.21 wide; abdomen 2.34 long, 1.70 wide. Clypeus 0.46 high. Eye sizes and interdistances: AME 0.07, ALE 0.08, PME 0.09, PLE 0.11; AME–AME 0.05, AME–ALE 0.05, PME–PME 0.11, PME–PLE 0.14. MOA 0.35 long, anterior width 0.18, posterior width 0.29. Measurements of legs: I, 4.71 (1.33, 1.55, 1.13, 0.70); II, 3.84 (1.23, 1.24, 0.86, 0.51); III, 4.17 (1.16, 1.32, 1.16, 0.53); IV, 5.64 (1.47, 1.79, 1.67, 0.71). Leg formula: 4132. Abdomen lighter than male. Other color and pattern same as in male.
Epigyne (Fig. 3). Epigynal plate about two times wider than long, without pocket. Copulatory openings located on the median portion of epigyne. Copulatory ducts intertwined. Spermathecae tubular, almost as wide as copulatory ducts.
Distribution. Known only from the type locality (Fig. 9).
description: Published as part of Li, Song-Lin, Liu, Ping & Peng, Xian-Jin, 2022, Three new species of the genus Asceua Thorell, 1887 (Araneae: Zodariidae) from Yunnan Province, China, pp. 56-68 in Zootaxa 5190 (1) on page 57, DOI: 10.11646/zootaxa.5190.1.2, http://zenodo.org/record/7119793