Research Article |
Corresponding author: Yan-Li Zheng ( yanli929718@163.com ) Academic editor: Mike Wilson
© 2014 Yan-Li Zheng, Lin Yang, Xiang-Sheng 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:
Zheng Y-L, Yang L, Chen X-S (2014) Four new species of the genus Saigona Matsumura (Hemiptera, Fulgoromorpha, Dictyopharidae) from China. ZooKeys 462: 27-41. https://doi.org/10.3897/zookeys.462.7500
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Four new species of the genus Saigona Matsumura, 1910, S. anisomorpha Zheng, Yang & Chen, sp. n., S. daozhenensis Zheng, Yang & Chen, sp. n., S. dicondylica Zheng, Yang & Chen, sp. n. and S. tenuisa Zheng, Yang & Chen, sp. n., from China, are described and illustrated. A key to the species of Saigona is provided.
Fulgoroidea , Oriental region, Palaearctic region, planthopper, taxonomy
The dictyopharid planthopper genus Saigona was established by
While sorting and identifying Dictyopharidae from material in the Institute of Entomology, Guizhou University (IEGU), we found four new species of Saigona, which are herein described and illustrated. The purpose of this paper is to describe these four new species and to provide an identification key to the species of this genus.
The morphological terminology and measurements used in this study follow
The following abbreviations are used in the text, BL: body length (from apex of cephalic process to tip of fore wings); HL: head length (from apex of cephalic process to base of eyes); HW: head width (including eyes); FWL: forewing length.
The type specimens are deposited in the Institute of Entomology, Guizhou University, China (IEGU).
Saigona Matsumura, 1910: 110;
Leprota Melichar, 1912: 91;
Neoputala Distant, 1914: 412;
Piela Lallemand, 1942: 72. Type species: Piela singularis Lallemand, 1942, by original designation and monotypy. [Synonymised by
Dictyophora [sic] ishidae Matsumura, 1905 (original designation).
For the relationships and diagnosis of Saigona see
China (Yunnan, Guizhou, Guangxi, Guangdong, Sichuan, Hubei, Hunan, Jiangxi, Zhejiang, Fujian, Gansu, Shaanxi, Henan, Taiwan, Jilin, Heilongjiang); Korea; Indochina; Japan; Russia (Far Eastern Region).
(Modified from
1 | Vertex with cephalic process short, shorter than pronotum and mesonotum combined (Figs |
2 |
– | Vertex with cephalic process long, longer than or nearly as long as pronotum and mesonotum combined (Figs |
7 |
2 | Postclypeus yellowish or yellowish brown | 3 |
– | Postclypeus fuscous | 5 |
3 | Mesonotum with a yellowish stripe along median longitudinal carina | 4 |
– | Mesonotum without a yellowish stripe along median longitudinal carina (Fig. |
S. dicondylica sp. n. |
4 | Mesonotum with median longitudinal yellowish stripe narrower; aedeagus with phallobase with apical ventral membranous lobe with numerous, fine spines at apex | S. ussuriensis (Lethierry) |
– | Mesonotum with median longitudinal yellowish stripe much broader; aedeagus with phallobase with apical dorsal and ventral membranous lobes with numerous, fine spines at apex | S. latifasciata Liang & Song |
5 | Frons with lateral carinae not reaching to frontoclypeal suture | S. fuscoclypeata Liang & Song |
– | Frons with lateral carinae almost reaching to frontoclypeal suture (Fig. |
6 |
6 | Aedeagus with phallobasal conjunctival processes spiraled dorsally | S. henanensis Liang & Song |
– | Aedeagus with phallobasal conjunctival processes not spiraled dorsally (Figs |
S. anisomorpha sp. n. |
7 | Cephalic process bulbous apically, with 3 pairs of symmetrical knoblike protuberance on lateral regions | 8 |
– | Cephalic process not bulbous apically, without knoblike protuberance on lateral regions | 9 |
8 | Aedeagus with phallobasal conjunctival processes straight | S. saccus Zheng, Yang & Chen |
– | Aedeagus with phallobasal conjunctival processes reflexed laterad at apex | S. fulgoroides (Walker) |
9 | Frons with lateral carinae almost reaching to frontoclypeal suture | S. capitata (Distant) |
– | Frons with lateral carinae reaching to eyes, not to frontoclypeal suture (Figs |
10 |
10 | Mesonotum with yellowish stripe along median longitudinal carina very narrow | S. taiwanella Matsumura |
– | Mesonotum with yellowish stripe along median longitudinal carina broad (Figs |
11 |
11 | Posterior margin of pygofer produced into a large process dorsally (Fig. |
S. tenuisa sp. n. |
– | Posterior margin of pygofer not produced into a large process dorsally | 12 |
12 | Aedeagus with phallobase with apical dorsal and ventral membranous lobes with numerous, fine spines at apex | S. sinicola Liang & Song |
– | Aedeagus with phallobase with apical ventral membranous lobe with numerous, fine spines at apex (Fig. |
13 |
13 | Aedeagus with phallobasal conjunctival processes subparallel apically (Figs |
S. daozhenensis sp. n. |
– | Aedeagus with phallobasal conjunctival processes diverging apically | S. robusta Liang & Song |
Saigona anisomorpha Zheng, Yang & Chen, sp. n. 1 Head and thorax, dorsal view 2 Frons and clypeus, ventral view 3 Head and pronotum, lateral view 4 Forewing 5 Hindwing 6 Pygofer and anal tube, dorsal view 7 Genitalia, lateral view 8 Pygofer and parameres, ventral view 9 Aedeagus, ventral view 10 Aedeagus, lateral view 11 Aedeagus, dorsal view. Scale bars: 1–5 = 1 mm, 6–11 = 0.5 mm.
Saigona daozhenensis Zheng, Yang & Chen, sp. n. 12 Head and thorax, dorsal view 13 Frons and clypeus, ventral view 14 Head and pronotum, lateral view 15 Forewing 16 Hindwing 17 Pygofer and anal tube, dorsal view 18 Genitalia, lateral view 19 Pygofer and parameres, ventral view 20 Aedeagus, ventral view 21 Aedeagus, lateral view 22 Aedeagus, dorsal view. Scale bars: 12–16 = 1 mm, 17–22 = 0.5 mm.
Saigona dicondylica Zheng, Yang & Chen, sp. n. 23 Head and thorax, dorsal view 24 Frons and clypeus, ventral view 25 Head and pronotum, lateral view 26 Forewing 27 Hindwing 28 Pygofer and anal tube, dorsal view 29 Genitalia, lateral view 30 Pygofer and parameres, ventral view 31 Aedeagus, ventral view 32 Aedeagus, lateral view 33 Aedeagus, dorsal view. Scale bars: 23–27 = 1 mm, 28–33 = 0.5 mm.
Saigona tenuisa Zheng, Yang & Chen, sp. n. 34 Head and thorax, dorsal view 35 Frons and clypeus, ventral view 36 Head and pronotum, lateral view 37 Forewing 38 Hindwing 39 Pygofer and anal tube, dorsal view 40 Genitalia, lateral view 41 Pygofer and parameres, ventral view 42 Aedeagus, ventral view 43 Aedeagus, lateral view 44 Aedeagus, dorsal view. Scale bars: 34–38 = 1 mm, 39–44 = 0.5 mm.
Measurement. ♂, BL: 15.7 mm; HL: 2.4 mm; HW: 1.5 mm; FWL: 11.8 mm.
Coloration. General color brown, marked with fuscous and ochraceous (Figs
Head and thorax. Head (Figs
Male genitalia. Anal tube (Figs
Holotype: ♂, China: Baiyun Mountain (N34°08', E112°05'), Henan Province, 13 Aug. 2008, X.-H. Hou. (IEGU).
This new species is named for its aedeagus with two phallobasal conjunctival processes unequal in length.
China (Henan).
This species is similar to S. henanensis Liang & Song, 2006, but can be distinguished from the latter by its phallobasal conjunctival processes not spiraled at apical 1/5, left one obviously longer than right one; phallobase with apical, dorsal small, with apical, ventral, membranous lobe small, not hook-like in lateral view.
Measurement. ♂, BL: 15.8 mm; HL: 3.2 mm; HW: 1.5 mm; FWL: 10.5 mm.
Coloration. General color brown, marked with fuscous and ochraceous speckles (Figs
Head and thorax. Head (Figs
Male genitalia. Anal tube (Figs
Holotype: ♂, China: Sanqiao Town (N28°53', E107°36', 1,300–1,600 m), Daozhen County, Guizhou Province, 22–24 May 2004, X.-S. Chen. (IEGU).
The specific name refers to the locality, Daozhen County, Guizhou Province, China.
China (Guizhou).
This species is similar to S. robusta Liang & Song, 2006, but can be distinguished from the latter by its anal tube rounded in dorsal view (oval in robusta); phallobasal conjunctival processes produced posteriorly (produced dorsally and ventrally, respectively in robusta); phallobase with apical, ventral, membranous lobe small, semi-oval in ventral view (large, triangular in robusta).
Measurement. ♂, BL: 12.0 mm; HL: 1.9 mm; HW: 1.4 mm; FWL: 8.5 mm.
Coloration. General color brown, marked with fuscous and ochraceous (Figs
Head and thorax. Head (Figs
Male genitalia. Anal style (Figs
Holotype: ♂, China: Yujun Mountain (N30°04', E101°57', 3,000 m), Kangding County, Sichuan Province, 6 Aug. 1999, G.-D. Ren. (IEGU).
This new species is named for its aedeagus having two stout spine-like processes apically.
China (Sichuan).
This species is similar to S. ussuriensis (Lethierry, 1878), but can be distinguished from the latter by its anal tube obviously narrowing at basal third; apicoventral lobe of pallobase with two stout processes at apex; phallobasal conjunctival processes asymmetrical apically.
Measurement. ♂, BL: 15.8 mm; HL: 3.9 mm; HW: 1.4 mm; FWL: 9.2 mm.
Coloration. General color dark brown (Figs
Head and thorax. Head (Figs
Male genitalia. Anal style (Figs
Holotype: ♂, China: Forest Park (N26°35', E106°42'), Guiyang City, Guizhou Province, 19 July 2000, X.-S. Chen. (IEGU).
The species name is derived from the Hellenic word “tenuisa”, referring to cephalic process slender and long.
China (Guizhou).
This species can be easily distinguished from other species of Saigona by its very long, slender cephalic process.
We are grateful to Prof. Guo-Dong Ren (Life Science College, Hebei University, Baoding, Hebei, China) and Dr. Xiao-Hui Hou (Institute of Entomology, Guizhou University, Guiyang, Guizhou, China) for collecting valuable specimen. This work was supported by the National Natural Science Foundation of China (No. 31060290, 31093430, 31160163) and the International Science and Technology Cooperation Program of Guizhou (20107005).