Research Article |
Corresponding author: Ren-Huai Dai ( rhdai69@163.com ) Academic editor: Christopher H. Dietrich
© 2016 Hu Li, Ren-Huai Dai, Zi-Zhong Li.
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:
Li H, Dai R-H, Li Z-Z (2016) The leafhopper genus Onukigallia Ishihara, 1955 with descriptions of two new species from southern China (Hemiptera, Cicadellidae, Megophthalminae, Agalliini). ZooKeys 622: 85-93. https://doi.org/10.3897/zookeys.622.9218
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Two new Chinese species of the leafhopper genus Onukigallia, O. neoonukii sp. n. from Sichuan and Guangdong Provinces, and O. tumida sp. n. from Hubei and Hunan Provinces are described and illustrated. A key and an updated checklist with distributions of Onukigallia species are provided.
Auchenorrhyncha , China, distribution, morphology, Onukigallia
The leafhopper genus Onukigallia is a small group in the tribe Agalliini of the subfamily Megophthalminae (Hemiptera: Auchenorrhyncha: Cicadellidae) with a distribution in the Oriental region, and well-known by its similarity to the type genus Agallia Curtis, 1833, both sharing stout setae on the male subgenital plates but Onukigallia differs from the latter in having hairlike setae on the male pygofer and subgenital plates and in the structure of the aedeagus and subgenital plates. It was established by
The present paper deals with two new species: Onukigallia neoonukii sp. n. from Sichuan and Guangdong Provinces, China and O. tumida sp. n. from Hubei and Hunan Provinces, China which are described and illustrated. A key to species is provided for identification, and the checklist is updated with distributions.
The higher classification of Cicadellidae and morphological terminology used in this work follow
The type material and other material examined are deposited in the Institute of Entomology, Guizhou University, Guiyang, China (GUGC).
Agallia onukii Matsumura, 1912 by original designation.
After
Oriental and Palearctic regions: China, Japan, Korea and Russia.
Body length including tegmina in repose: ♂, 5.32–5.36 mm; ♀, 5.45–5.85 mm.
Body coloration. Body background color yellowish brown (Figs
External morphology. Body appearance (Figs
Male genitalia. Pygofer (Fig.
Onukigallia species 9–17 O. neoonukii sp. n. 18–19 O. onukii (Matsumura, 1912) 9 Pygofer side and subgenital plate, lateral view 10 Style, dorsal view 11 Connective, dorsal view 12, 18 Aedeagus, lateral view 13, 19 Same, caudal view 14–15 First valvulae 16–17 Second valvulae 15, 17 partial enlarged view.
Female genitalia. 7th sternite nearly 1.5 × wider than long, and nearly 2.0 × longer than 6th sternite, hind margin slightly excavated and ridged medially. Ovipositor projecting beyond pygofer. First pair of valvulae (Figs
HOLOTYPE: ♂, CHINA: Sichuan Province, Yaan City, Baoxing, Fengtongzhai, 1500 m, 03.VIII.2005, collected by Zhou Zhong-Hui. PARATYPES: 2 ♀♀, Same data as holotype. 1 ♂ 5 ♀♀, CHINA: Guangdong Province, Nanling, Ruyang management station, 850–1500 m, 04–06.VIII.2006, collected by Zhou Zhong-Hui. 4 ♀♀, CHINA: Guangdong Province, Nanling, Longshan Power Station, 500 m, 07–09.VIII.2006, collected by Yang Zai-Hua.
China (Sichuan and Guangdong Provinces).
The new species is similar to O. onukii (Matsumura) (Figs
The new species name is derived from the Latin words “neo-” and “onukii”, refers to the similarity to O. onukii (Matsumura).
Body length including tegmina in repose: ♂, 4.48–4.50 mm.
Body coloration and external morphology. Body (Figs
Male genitalia. Pygofer (Fig.
Female genitalia. Unknown.
HOLOTYPE: ♂, CHINA: Hubei Province, Shennongjia, 17.VII.2013, collected by Chang Zhi-Min. PARATYPES: 1 ♂, CHINA: Hunan Province, Badagongshan, 03.VIII.2013, collected by Li Hu.
China (Hubei and Hunan Provinces).
This new species is similar to O. fanjingensis Zhang & Li but can be distinguished from the latter by the different shape of the pygofer lobe and the anal collar process, the aedeagal shaft with an apophysis on its dorsal margin near the base in lateral view, and expanded laterally near base in ventral aspect.
The new species name is derived from the Latin word “tumidus”, refers to the swollen structure of aegeagal shaft.
Based on the original descriptions, illustrations, and examinations of specimens the following key (largely based on the male genitalia) distinguishes the species of Onukigallia except O. tenuis (Matsumura) which is only known by its female.
1 | Aedeagal shaft with teeth on dorsal margin | 2 |
– | Aedeagal shaft without teeth on dorsal margin | 3 |
2 | Aedeagal shaft slender and with several teeth on dorsal margin near middle | O. onukii (Matsumura) |
– | Aedeagal shaft strongly slender and with more teeth on dorsal margin from subbasally to subapically | O. neoonukii sp. n. |
3 | Aegeagal shaft with hump on dorsal margin in lateral view near midlength, and expanded laterally near base in ventral view | O. tumida sp. n. |
– | Aegeagal shaft without apophysis on dorsal margin in lateral view, and not expanded laterally in ventral view | 4 |
4 | Preatrium of aedeagus elongate; pronotum darkly pigmented | O. arisana (Matsumura) |
– | Preatrium of aedeagus short and poorly developed; pronotum paler | 5 |
5 | Aedeagus lacking preatrium; anal collar process with inflated subapex and round tip | O. matsumurai Zhang |
– | Aedeagus with weakly developed preatrium; anal collar process with tapered subapex and acute tip | O. fanjingensis Zhang & Li |
Species name | Distribution |
---|---|
O. arisana (Matsumura, 1912) | China (Taiwan) |
O. fanjingensis Zhang & Li, 1999 | China (Shaanxi, Hubei, Guangxi, Guizhou, Fujian, Anhui, Zhejiang) |
O. matsumurai Zhang, 2011 | China (Yunnan) |
O. neoonukii sp. n. | China (Sichuan, Guangdong) |
O. onukii (Matsumura, 1912) | China (Gansu, Shaanxi, Ningxia, Shanxi, Liaoning, Jilin, Hebei, Henan, Anhui, Hubei, Hunan, Zhejiang, Guizhou, Sichuan, Yunnan), Japan, Korea, Russia |
O. tenuis (Matsumura, 1912) | China (Taiwan) |
O. tumida sp. n. | China (Hubei, Hunan) |
The authors are grateful to Zhong-Hui Zhou, Zai-Hua Yang and Zhi-Min Chang (GUGC) for providing the specimens studied here, and to anonymous reviewers and the editor for providing useful comments on the manuscript. This project was supported by a National Natural Science Foundation of China (no. 31360524) and a Doctoral Scientific Research Foundation of Shaanxi Sci-Tech University (nos. SLGKYQD2-17 and SLGBH16-02).