Alaria chengguanensis, Zhao, Qingyuan & Li, Shuqiang, 2012

Zhao, Qingyuan & Li, Shuqiang, 2012, Eleven new species of theridiosomatid spiders from southern China (Araneae, Theridiosomatidae), ZooKeys 255, pp. 1-48 : 4-5

Alaria chengguanensis sp. n. Figs 15

Material examined.

Holotype: CHINA, Guizhou: Bijie City, Chengguan Town, Xiaohe Village, Xiniu Cave, 27°21.231'N, 105°17.186'E, elevation ca 1515 m, 30 April 2007, J. Liu & Y.C. Lin (IZCAS), 1 male.

Paratypes: [same data as holotype] (IZCAS), 13 males, 8 females.

Etymology.

This specific name chéng guān () refers to its type locality; adjective.

Diagnosis.

See diagnosis for genus.

Description.

Carapace brownish red, with symmetric dark veins. Sternum yellow with dark brown margins. Legs yellow, dark brown distally at joints, especially tibiae. Abdomen tan with dark grey and silver patches (Figs 2 A–B).

Male pedipalp: Patella with strong sinuous macroseta. Tibia with two trichobothria. Cymbium with small cluster of long setae proximally (Figs 1B, 3D). Paracymbium elongated, curved near base (Figs 1B, 3D). Tegulum smooth. Median apophysis wide, longitudinally grooved, strongly sclerotized, with curved and pointed distal region. Conductor a thick, looped, blade-shaped structure enveloping embolus for most of its length (Figs 1 B–D). Embolus long, slim.

Vulva: Epigyne with long, tongue-shaped scape protruding from beneath its concaved margin. Scape slightly humped with a small transverse opening at its distal end. Spermathecae juxtaposed. Copulatory ducts rise and curl up to form a blunt-tipped projection at each side (Figs 2A, 5D).

Male (holotype): Total length 2.10, carapace 1.24 long, 1.08 wide, clypeus 0.13, sternum 0.6 long, 0.6 wide, coxae IV separated by two thirds their width. Posterior median eyes separated by half their diameter. Macrosetae: Leg I: femur d 1, patella d 1, tibia d 1, p 1, v 2, r 1, metatarsus p 1, v 1; Leg II: femur d 2, patella d 2, tibia d 1, p 1, v 1, r 1, metatarsus p 1, v 1; Leg III: femur d 3, patella d 1, tibia p 1, v 2, metatarsus d 1, p 1, r 1; Leg IV: femur d 1, tibia p 1, v 1, r 1, metatarsus p 1, v 1, r 1. Metatarsal trichobothria: Tm I: 0.27; Tm II: 0.30; Tm III: 0.84; Tm IV: 0.24. Leg measurements: I 3.98 (1.25, 0.50, 0.85, 0.88, 0.50); II 3.09 (1.00, 0.43, 0.63, 0.63, 0.40); III 2.27 (0.68, 0.35, 0.38, 0.48, 0.38); IV 2.95 (0.93, 0.38, 0.63, 0.63, 0.38).

Female (one of paratypes): Total length 2.50, carapace 1.25 long, 1.25 wide, clypeus 0.08, sternum 0.78 long, 0.63 wide, coxae IV separated by 1 time their width. Posterior median eyes separated by half their diameter. Macrosetae as in male. Metatarsal trichobothria: Tm I: 0.21; Tm II: 0.25; Tm III: 0.48; Tm IV: 0.27. Leg measurements: I 4.66 (1.05, 0.63, 0.95, 0.95, 0.63); II 3.75 (1.20, 0.55, 0.75, 0.75, 0.50); III 2.48(0.75, 0.33, 0.50, 0.50, 0.40); IV 3.75 (1.25, 0.50, 0.75, 0.75, 0.50).