Research Article |
Corresponding author: Zhengguang Zhang ( zhzhg0537@163.com ) Academic editor: Mick Webb
© 2016 Zhengguang Zhang, Zhimin Chang, Xiangsheng Chen.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Zhang Z-G, Chang Z-M, Chen X-S (2016) Review of the planthopper genus Neohemisphaerius (Hemiptera, Fulgoroidea, Issidae) with description of one new species from China. ZooKeys 568: 13-21. doi: 10.3897/zookeys.568.6700
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The planthopper genus Neohemisphaerius Chen, Zhang & Chang, 2014 (Hemiptera: Fulgoroidea: Issidae) is reviewed to include 3 species: N. wugangensis Chen, Zhang & Chang, 2014 (China: Hunan), N. yangi Chen, Zhang & Chang, 2014 (China: Guangdong) and N. guangxiensis sp. n. (China: Guangxi). A revised generic diagnosis is given. The new species is described and all species illustrated. A key to these three species is also given. The species Neohemisphaerius signifer (Walker) is transferred back to Hemisphaerius as H. signifer Walker, comb. revived.
Fulgoromorpha
The genus Neohemisphaerius was erected by Chen, Zhang & Chang, 2014 for two new species (N. wugangensis and N. yangi) and N. signifer Walker, 1851, from China. In this paper, one new species of the genus Neohemisphaerius is described and illustrated from China, the generic characteristics are redefined and a checklist and key to the known species of the genus are provided. In addition, N. signifer is removed from the genus; its placement was based on the identification by
The morphological terminology of the head and body follows
The type specimens of the new species are deposited in School of Life Sciences, Jinggangshan University.
Neohemisphaerius Chen, Zhang & Chang, 2014: 80
Neohemisphaerius wugangensis Chen, Zhang & Chang, 2014.
Body hemispherical, head including eyes wider than pronotum. Vertex about 2.5–3.1 times wider than long, anterior margin more or less straight, posterior margin angulately concave, disc depressed, edges carinated. Frons longer than broad, with median carina, lateral margins slightly elevated. Clypeus convex on disc, distinctly tapering to apex. Pronotum depressed on disc, with two central pits, edges carinated. Mesonotum subtriangular, without median and lateral carinae. Forewings hemispherical, claval suture present. Hind wings rudimentary, veins indistinct. Hind tibiae with 2 lateral teeth. Spinal formula of the hind leg (9,10)-(4,5)-2.
China (Guangdong, Guangxi, Hunan)
The genus Neohemisphaerius is similar to Hemisphaerius Schaum, 1850 and Gergithus Stål, 1870, but it differs from Hemisphaerius in: frons with median carina; clypeus with a hump-shaped process in middle and forewings with claval suture present. It differs from Gergithus in: frons with median carina; forewings with claval suture present; hind wings rudimentary, shorter than half length of forewings.
1 | Forewings (Figs |
N. guangxiensis sp. n. |
– | Forewings (Figs |
2 |
2 | Frons (Fig. |
N. wugangensis |
– | Frons (Fig. |
N. yangi |
Neohemisphaerius guangxiensis sp. n. 1 Adult (male), dorsal view 2 Adult (male), in lateral view 3 Frons and clypeus (male), in front view 4 Adult (female), in dorsal view 5 Adult (female), in lateral view 6 Frons and clypeus (female), in front view.
Neohemisphaerius guangxiensis sp. n. 7 Hind wing 8 Male genitalia, in lateral view 9 Aedeagus, in left view 10 Aedeagus, ventral view 11 Genital style, in profile view 12 Anal tube, in dorsal view.
Neohemisphaerius wugangensis Chen, Zhang & Chang, 2014. 13 Adult (male), in dorsal view 14 Adult (male), in lateral view 15 Head (male), in lateral view 16 Frons and clypeus (male), in front view.
Holotype: ♂, China: Guangxi, Maoershan National Nature Reserve (E110°27'56.9", N25°54'43.5"), 1470 m, 18 July 2015, Z.G. Zhang; paratypes: 2 ♂♂, 5 ♀♀, same data as holotype.
Body length (from apex of vertex to tip of forewing): male 4.63 mm, female 5.21 mm; Forewing: male 4.12 mm, female 4.60 mm.
Male: Vertex (Fig.
Vertex (Fig.
Anal tube (Fig.
The specific name refers to the locality, Guangxi province, China.
Unknown.
This species is similar to N. wugangensis, but differs in: (i) Anal tube (Fig.
Neohemisphaerius wugangensis Chen, Zhang & Chang, 2014: 80: figs 2–35.
1♂4♀♀, Yunshan National Forest Park, Wugang city, Hunan Province, China
Neohemisphaerius yangi Chen, Zhang & Chang, 2014: 83: figs 2–36.
2♂♂7♀♀, Nanling National Nature Reserve, Guangdong Province, China.
We are grateful to Ms. M.L. Chan (National Museum of Natural Science, Taichung Taiwan) and Dr. V.M. Gnezdilov (Zoological Institute, Russian Academy of Science, Russia) for providing valuable references. This work was supported by the Natural Science Foundation of China (31460157), the Natural Science Foundation of Jiangxi Province, China (20114BAB214013), Science Research Fund of Jiangxi Provincial Education Department (GJJ14562), the Scientific Research Foundation for Doctors of Jinggangshan University (JZ10039) and High Level Discipline of Biology, Jiangxi Province.