Agroeca lata Mu & Jin & Zhang 2019, sp. n.
Creators: name: Mu, Yannan
name: Jin, Chi
name: Zhang, Feng
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Liocranidae
Agroeca
Agroeca lata

description: Agroeca lata sp. n.
Figs 3–5
Type material. Holotype ♂, CHINA: Yunnan Province, Baoshan City, Tengchong County, Gaoligong Mountains National Nature Reserve (25°17.238′N, 98°42.174′E), 2275 m a.s.l., 17 Oct 2015, leg. Tian Lu. Paratype: 1♀, same data as the holotype.
Etymology. The specific name is a Latin adjective meaning “wide”. It refers to the wide embolus.
Diagnosis. The new species is similar to Agroeca mainlingensis sp. n., but the male can be distinguished by the unique shape of the tegulum and the hammer-like median apophysis (Fig. 5A); the female can be distinguished by: 1) the presence of two small hoods on the anterior septum (vs two large hoods); 2) the lateral copulatory openings (vs slanting obliquely upward); and 3) the differently folded copulatory ducts.
Description. Male. Holotype (Figs 3 A–D) total length 3.22. Carapace 1.57 long, 1.25 wide; abdomen 1.65 long, 1.14 wide. Carapace yellow-brown, lighter medially than laterally, margin dark; fovea dark reddish-brown; radial groove distinct, cervical groove indistinct. Eye sizes and interdistances: ALE 0.10, PLE 0.10, PME 0.09, AME 0.05, AME–AME 0.03, AME–ALE 0.03, PME–PME 0.07, PME–PLE 0.04. MOA 0.18 long, 0.25 posterior wide, 0.12 anterior wide. Sternum grey, longer than wide. Legs fuscous; tibia I with 3 pairs of ventral spines (additional one ventral spine at apex), tibia II with one prolateral ventral spine, three retrolateral ventral spines. Metatarsus I with two prolateral spines and three retrolateral spines. Metatarsus II with two retrolateral spines and three prolateral spines. Measurements of legs: leg I 4.50 (1.26+0.60+1.05+0.88+0.71), leg II 4.07 (1.15+0.60+0.88+0.82+0.62), leg III 3.81 (1.00+0.52+0.77+0.90+0.62), leg IV 5.53 (1.47+0.58+1.20+1.46+0.82).
Palp (Figs 3 E–G, 5A–B) brown, bulb semielliptic. RTA short and thick, distally blackish; embolus sheet-shaped, curved downwards; conductor membranous, behind embolus; median apophysis hammer-like in ventral view. Subtegulum wide, tegulum wide, sperm duct faint, U-shaped.
Female: Paratype (Figs 4 A–D) total length 3.77, carapace 1.70 long, 1.39 wide; abdomen 2.07 long, 1.46 wide. Eye sizes and interdistances: ALE 0.10, PLE 0.11, PME 0.10, AME 0.05, AME–AME 0.03, AME–ALE 0.03; PME–PME 0.08, PME–PLE 0.06. MOA 0.19 long, 0.27 posterior wide, 0.14 anterior wide. Chelicerae as in male. Tibia I and II with three pairs of ventral spines. Measurements of legs: leg I 4.38 (1.25+0.64+1.06+0.83+0.60), leg II 4.09 (1.16+0.63+0.93+0.81+0.56), leg III 4.03 (1.10+0.57+0.78+0.95+0.63), leg IV 5.68 (1.50+0.67+1.22+1.48 +0.81). Other characters same as male.
Epigyne (Figs 4 E–F, 5C–D) wider than long; septum narrow; copulatory openings small, laterally located; copulatory ducts short, simply folded; epigynal plate with two small anterior hoods; spermathecae oval, adjacent to each other; fertilization ducts short.
Distribution. Known only from the type locality (Fig. 17).
description: Published as part of Mu, Yannan, Jin, Chi & Zhang, Feng, 2019, A survey of Agroeca Westring, 1861 from China (Araneae: Liocranidae), pp. 91-112 in Zootaxa 4615 (1) on pages 92-94, DOI: 10.11646/zootaxa.4615.1.4, http://zenodo.org/record/3995359