Abrus langshanensis, Yang, Lin & Chen, Xiang-Sheng, 2013

Yang, Lin & Chen, Xiang-Sheng, 2013, Two new species of the bamboo-feeding leafhopper genus Abrus Dai & Zhang (Hemiptera, Cicadellidae, Deltocephalinae) from China, ZooKeys 318, pp. 81-89 : 85-87

Abrus langshanensis sp. n. Figs 13-27

Type material.

Holotype: ♂, China: Hunan, Xinning, Langshan (110°49'E, 26°22'N), on bamboo, Indocalamus sp., 6 Oct. 2010, X.-S. Chen and L. Yang; paratypes 1 ♂, 1 ♀, data same as holotype; paratype 1 ♂, Hunan, Xinning, Langshan, on bamboo, Indocalamus sp., 2 Oct. 2011, X.-S. Chen and L. Yang.

Etymology.

This species is named after the type locality, Langshan, Xinning, Hunan Province in China.

Description.

Measurement. Body length including forewing male 9.10-9.60 mm (N = 3), female 9.55 mm (N = 1); forewing length male 7.70-8.10 mm (N = 3), female 7.85 mm (N = 1).

Coloration.

Measurement. General color pale yellowish orange (Figs 13-17). Crown with two pairs of similar blackish brown spots on anterior margin. Eyes blackish brown, ocelli pale yellowish white. Face pale yellowish white. Inner and central anteapical cells at apex, third and fourth apical cells at base each with a dark brown spot.

Head and thorax. Crown medial length 0.58 × width between eyes. Pronotum length 2.03 × medial length of crown. Scutellum length 0.87 × medial length of pronotum. Forewing length 4.00 × medial width at widest part.

Male genitalia. Pygofer in lateral view (Fig. 18) narrower posteriorly; covered with macrosetae posteriorly, with several basoventrally dorsad of ventral margin; dorsal margin sinuate; ventral margin concave medially; with a small papillae posteriorly. Genital valve (Fig. 19) broad triangular; posterior margin slightly acute and rounded; basal width 1.95 × medial length. Subgenital plate (Fig. 19) broad and short; outer margin roundedly curved; with many macrosetae on lateral region. Style (Fig. 20) long; broad at base; narrowing apically; apex slightly recurved; apical margin acute and rounded. Connective (Fig. 21) Y-shaped; stem robust; arms well developed; length of stem 0.44 × that of arm. Aedeagus (Figs 22, 23) without basal projection dorsally; aedeagal shaft in lateral view (Fig. 23) almost S-shaped; apex produced into a robust hook-like process. Phallotreme apical on ventral surface.

Host plant.

Bamboo ( Indocalamus sp.).

Distribution.

South China (Hunan).

Remarks.

This new species is similar to Abrus breviolus Dai & Zhang, 2008 in aedeagus having reduced or small basal projection dorsally, but can be distinguished by posterior margin of male pygofer without process (with stout process dorsally in breviolus); apical margin of subgenital plate rounded (truncate in breviolus); aedeagal shaft with apex hook-like, without pair of subapical appendages (with pair of subapical appendages laterally in breviolus).