Lysiteles corrugus sp. nov.

Figs 5 a–g, 21

Type material: Holotype: female, CHINA, Yunnan Province, Tengchong County, Qushi Township, Daba Village [N25.171409°, E098.421013°], 2170 m, 14 May 2006, Chang-Min Yin, Jia-Fang Hu and Xiao-Hua Yang (HNU-YHY0103).

Paratypes: 1 Ψ, same data as holotype (CAS-YHY0103). Tengchong County: 2 Ψ, Xinhua Township, Longjing Village [N24.48203°, E098.23390°], 1940 m, 5 June 2006, Chang-Min Yin, Jia-Fang Hu and Xiao- Hua Yang (CAS-YHY2905). Gongshan County: 1 Ψ, Dulongjiang Township, Maku [N27.68875º, E098.31303º), 1677 m, 3 September 2006, Peng Hu (HNU-Hu 060903).

Etymology. The specific name is from the Latin corrugus, meaning wrinkled and referring to the shape of the copulatory ducts, adjective.

Diagnosis. This species is similar to L. guoi sp. nov. (Figs 9 b, c) in having a large atrium, but can be separated from the latter by: dorsal shield of prosoma light yellow with 1 pair of brown stripes (blackish brown in L. guoi); the form of the atrium rim; copulatory openings separated from each other much further; copulatory ducts also separated from each other much further.

Description. Female (holotype): Total length 3.00. Prosoma 1.40 long, 1.20 wide; opisthosoma 1.70 long, 1.45 wide. Dorsal shield of prosoma yellow, with a pair of blackish brown lateral stripes. Eye area brown. Eye tubercles blackish brown with white rim. Eye sizes and interdistances: AME 0.07, ALE 0.15, PME 0.05, PLE 0.10; AME-AME 0.15, AME-ALE 0.10, PME-PME 0.20, PME-PLE 0.25; MOA 0.25 long, front width 0.30, back width 0.33. Sternum yellow. Chelicerae, gnathocoxae and labium yellow. Legs yellow with many spines, including femora: I prolateral 0-1-1-1, dorsal 0-1-0-1, II, III dorsal 1(weak)-1-0-1, IV dorsal 0-1-0-0; tibiae: I, II ventral 1–2, III, IV ventral 0–1; metatarsi I, II ventral 2–2. Leg measurements: I: 3.60 (1.20, 1.10, 0 70, 0.60), II: 3.90 (1.20, 1.30, 0.80, 0.60), III: 2.60 (0.90, 0.80, 0.50, 0.40), IV: 2.90 (1.00, 0.90, 0.60, 0.40); formula 2, 1, 4, 3. Opisthosoma dorsum yellow, markings blackish brown, dorsum with 1 pair of broken longitudinal stripes; posteriorly with 3 pairs of small lateral spots; venter yellow with a U-shaped marking before spinnerets.

Epigyne-vulva (Figs 5 d–g). Atrium large, copulatory openings medial; copulatory ducts long and convoluted; spermathecae pyriform.

Male: Unknown.

Variation. Total length: females 2.90–3.10 (n = 5). The abdominal markings vary in size and pigmentation: one specimen has grayish black markings and many small white spots; another has black markings and lacks white spots (Figs 5 a–c).

Distribution. China (recorded from Tengchong and Gongshan Counties of Yunnan Province).