Decliviassus sagittatus, Wang & Wu & Dai, 2018

Wang, Xian-Yi, Wu, Yun-Fei & Dai, Ren-Huai, 2018, Three new species of the leafhopper subfamily Iassinae (Hemiptera: Cicadellidae) from China, Zootaxa 4442 (3), pp. 378-388: 382-383

publication ID

publication LSID

persistent identifier

treatment provided by


scientific name

Decliviassus sagittatus

sp. nov.

Decliviassus sagittatus   sp. nov.

Figs. 2, 5, 8 View FIGURES 1–9. 1, 4, 7 , 37–42 View FIGURES 37–42 .

Description. Body length. (including tegmina): ♂, 7.2 mm.

Overall coloration bright yellow, without dark spots; forewing membrane translucent.

Ocelli separated by about 5 times distance from ocellus to adjacent eye; clypeal suture prominent, anteclypeus central arched, base front width exceeds the apex ( Fig. 8 View FIGURES 1–9. 1, 4, 7 ). Scutellum wider than long ( Fig. 2 View FIGURES 1–9. 1, 4, 7 ).

Male genitalia. Pygofer side ship-shaped, gradually narrowed from base to apex, with numerous macrosetae distally ( Fig. 37 View FIGURES 37–42 ). Subgenital plate short and broad, triangular, pygofer ventral process short, apex curved slightly ventrad and mesad ( Figs. 37–38 View FIGURES 37–42 ). Connective straplike, simple ( Fig. 40 View FIGURES 37–42 ). Style slender, close to the apex slightly bending outwards apically ( Fig. 39 View FIGURES 37–42 ). Aedeagus hairpin-shaped in lateral aspect, apex almost membranous; dorsal apodeme bifurcate in ventral aspect, shaft apex arrow-shaped; gonopore apical between bases of paired processes ( Figs. 41–42 View FIGURES 37–42 ).

Material examined. Holotype: ♂, CHINA: Yunnan Province, Menglun City , 2. V. 2015, collected by Wang Jia-jia and Wu Yun-fei;  

Remarks. The new species is similar to D. bipunctatus Dai, Dietrich & Zhang, But   can be distinguished from the latter by the absence of a pair of brown lateral spots on the pronotum, the structure of the aedeagus, the acuminate style apophysis, and the triangular subgenital plate.

Etymology. The new species name is derived from the Latin word “ sagittatus   ”, refering to the arrow-shaped apex of the aedeagus.

Distribution. China (Yunnan Province).