Corresponding author: Dao-zheng Qin (
Academic editor: Mike Wilson
A new delphacid (
Ren F, Xie Q, Qin D (2015)
The Oriental planthopper genus
The specimens examined in this study including type material are deposited in the Entomological Museum, Northwest A&F University, Yangling, Shaanxi, China
The genus
Head including eyes nearly as wide as pronotum. Vertex quadrate, anterior margin rounded, apices of submedian carinae and base of median frontal carina feebly developed. Angle of fastigium obtuse. Y-shaped carina with common stem distinct. Antennae cylindrical, short. Spinal formula of hind leg 5-7-4, post-tibial spur cultrate, concave on inner surface without teeth along posterior margin. Male pygofer in profile wider ventrally than dorsally, laterodorsal angles roundly produced, caudal margin near base strongly produced posteriorly, in posterior view the pygofer with a single process on the midventral margin, lateroventral margins not well defined. Parameres widely divergent apically. Diaphragm of pygofer broad, dorsally produced and incised in middle. Suspensorium ring-like ventrally. Aedeagus tubular, not twisted at base, subapex bearing teeth on both sides. Anal segment deeply sunk into the dorsal emargination of pygofer, caudoventral angles each produced in a spinose process.
After being established by
The genus
China (Taiwan, Yunnan), Sri Lanka, Philippines.
1 | Medioventral process of pygofer widening in basal third then tapering to acuminate apex ( |
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– | Medioventral process of pygofer simple, not widening in basal third (Figs |
2 |
2 | Male anal segment has two processes long, overlapped near bases (Figs |
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– | Male anal segment with two processes short and separated, not overlapped near base ( |
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Brachypterous: Total length (from apex of vertex to the tip of abdomen): male (n=16) 2.40–2.75 mm, female (n=15) 2.65–2.88 mm; tegmina length: male (n=16) 1.85–1.90 mm, female (n=15) 1.88–1.98 mm.
Pronotum in midline slightly shorter than length of vertex (about 0.85:1), lateral carinae slightly curved, not reaching posterior margin of pronotum (Figs
Holotype. ♂ (brachypterous,
This specific name alludes to the two overlapped processes near bases of the anal segment.
Unknown.
Yunnan Province (in southwest China).
The authors wish to thank Prof. John Richard Schrock (Emporia State University, Emporia, USA) for helpful suggestions on the revision of the early draft of the manuscript. This work was supported by the National Natural Science Foundation of China (Nos. 30970387 and 31172126).