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Holotype: ♂, China: Guizhou, Huishui, Yantang (26°08'N, 106°39'E), collected from bamboo (Dendrocalamus affinis), 31 May 2008, X.-S. Chen and L. Yang (IEGU); paratypes: 3 ♀♀, same data as holotype (IEGU); 3 ♂♂, 4♀♀, Guizhou, Changshun, Weiyuan (26°02'N, 106°27'E), collected from bamboo (Dendrocalamus affinis), 30 Sept. 1997, X.-S. Chen and L. Yang (IEGU), one male and female deposited in BMNH; 3 ♀♀, Guangdong, Guangzhou, Baiyunshan (23°10'N, 113°18'E), collected from bamboo, 21 Nove. 2006, X.-S. Chen (IEGU).
The new species is named after the host plant bamboo (Bambusoideae).
Body length (from apex of vertex to tip of forewings): male 4.03–4.15 mm (N = 5); female 3.75–4.22 mm (N = 10); forewing length: male 3.25–3.30 mm (N = 5); female 3.05–3.31 mm (N = 10).
Milky white to pale yellow (Figs 13-16). Forewing cells rather clouded with faint pale brown; distal portions of tarsi dark brown (Figs 3, 13, 14).
Head and thorax
External features as in diagnosis. Crown shorter medially than width between eyes (0.14:1). Pronotum shorter medially than width at widest part (0.55:1), longer medially than crown (4.0:1). Scutellum shorter medially than pronotum (0.31: 1). Forewing longer medially than width at widest part (2.95:1). Hindwing longer medially than width at widest part (3.65:1).
Male abdomen with 3S apodemes subparallel, extended to midlength of segment V (Fig. 5).
Aedeagus with both pair of preapical processes curved laterally, lower pair slightly shorter than more dorsal pair (Figs 9, 10, 11); shaft apex blunt and rounded. Other features as in generic diagnosis.
Seventh sternite (Fig. 12) broad basally, triangularly produced posteriorly with rather rounded apex.
Bamboo (Dendrocalamus affinis (Rendle) Mcclure) (Figs 17, 18).
Southern China (Guizhou and Guangdong) (Fig. 19).
This new species is very closely related to Sweta hallucinata Viraktamath & Dietrich, 2011 from Thailand and India, but can be distinguished by the aedeagus with apex blunt and rounded (tapering in hallucinata); the lower pair of subapical processes slightly shorter than more dorsal pair (in hallucinata, the lower pair are distinctly longer than the more upper pair); male abdomen with the 3S apodemes extended to midlength of the segment V (extended to midlength of the segment IV in hallucinata); the female abdominal sternite VII more or less triangular (relatively rounded in hallucinata).
- Yang, L; Chen, X; Li, Z; 2012: First record of the leafhopper genus Sweta Viraktamath & Dietrich (Hemiptera, Cicadellidae,Typhlocybinae) from China, with description of one new species feeding on bamboo ZooKeys, 187: 35-43. doi