Decliviassus sagittatus

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

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Decliviassus sagittatus

sp. nov.

Decliviassus sagittatus  sp. nov.

Figs. 2, 5, 8 View Figure , 37–42 View Figure .

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 Figure ). Scutellum wider than long ( Fig. 2 View Figure ).

Male genitalia. Pygofer side ship-shaped, gradually narrowed from base to apex, with numerous macrosetae distally ( Fig. 37 View Figure ). Subgenital plate short and broad, triangular, pygofer ventral process short, apex curved slightly ventrad and mesad ( Figs. 37–38 View Figure ). Connective straplike, simple ( Fig. 40 View Figure ). Style slender, close to the apex slightly bending outwards apically ( Fig. 39 View Figure ). 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 Figure ).

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).