Research Article |
Corresponding author: Ran-Huai Dai ( rhdai69@163.com ) Academic editor: Pavel Stoev
© 2023 Hu Li, Ran-Huai Dai, Michael D. Webb.
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, Webb MD (2023) Description of two new species of the leafhopper genus Pediopsis Burmeister (Hemiptera, Cicadellidae, Eurymelinae, Macropsini) from China. ZooKeys 1149: 135-144. https://doi.org/10.3897/zookeys.1149.81434
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Two new leafhopper species of Pediopsis Burmeister, Pediopsis albopicta Li & Dai, sp. nov. from Hunan and Guizhou provinces of central China and Pediopsis pianmaensis Li & Dai, sp. nov. from Yunnan Province of southwestern China, are described and illustrated. Ambiguity in the original description of P. bannaensis Yang & Zhang is discussed, and figures of the female holotype of P. femorata Hamilton are provided for the first time. A checklist and key to Chinese species of Pediopsis are also given.
Auchenorrhyncha, Homoptera, morphology
The leafhopper genus Pediopsis Burmeister, belonging to the tribe Macropsini of the subfamily Eurymelinae (sensu
Specimens studied were collected by netting. External morphology was observed under Olympus SZX7 and BX43 microscopes. Male terminalia preparations were macerated in a boiling solution of 8% NaOH for ~ 5 min. Habitus images of adults were obtained by using a KEYENCE VHX-1000 system. Genitalia drawings were created and edited utilizing Adobe Illustrator CS6 and Photoshop CS6 based on line drawings of specimens.
The higher classification and morphological terminology used in this work follows
Type specimens of the new species and other material examined are deposited in the Institute of Entomology, Guizhou University, Guiyang, China (GUGC).
Bythoscopus (Pediopsis) Burmeister, 1838: 11.
Pediopsis
–
Jassus tiliae Germar, 1831, by subsequent designation of
Palaearctic, Oriental, Nearctic, and Australian regions.
Pediopsis can be distinguished by the following combination of features: head across eyes usually distinctly narrower than pronotum, face wider than long, lora relatively large, pronotum frontally declivous and usually with strongly oblique striations, male pygofer without spines or processes, dorsal connective usually strongly developed. The traditional separation of Pediopsis from Pedionis (
P. albopicta Li & Dai, sp. nov. Figs
P. bannaensis Yang & Zhang, 2015: 488, figs 29–39. Distribution. China (Yunnan Province), Thailand.
P. cudraniae Cai & Wang, 2005: 206, fig. 1. Distribution. China (Shandong Province).
P. femorata Hamilton, 1980: 919; Figs
P. kurentsovi Anufriev, 1971: 95, figs 4–6; 1976: 133. Distribution. China (Hebei, Heilongjiang provinces), Russia.
P. ningxiaensis Dai & Li, 2013: 961, figs 22–31. Distribution. China (Ningxia Province).
P. tiliae (Germar, 1831: 14),
P. pianmaensis Li & Dai, sp. nov. Figs
1 | Fore margin of head and pronotum in dorsal view strongly arched forward (Fig. |
P. femorata |
– | Fore margin of head and pronotum in dorsal view moderately arched forward | 2 |
2 | Mesonotum with white tip and veins of forewings with white spots (Fig. |
P. albopicta |
– | Mesonotum without white tip and veins of forewings without white spots; aedeagal shaft short to long | 3 |
3 | Species mainly dark (Fig. |
P. pianmaensis |
– | Species mainly pale, sometimes forewing with distinct brown markings; forewings with two or three subapical cells (Fig. |
4 |
4 | Dorsal connective with process near midlength or subbasally | 5 |
– | Dorsal connective with process absent | 7 |
5 | Dorsal connective with well-developed process near midlength, caudodorsally twisted Y-shaped (see |
P. bannaensis |
– | Dorsal connective with weakly developed process subbasally, straight (see |
6 |
6 | Forewing distinctly marked with brown; aedeagal shaft slender (see |
P. kurentsovi |
– | Forewing weakly marked with brown; aedeagal shaft not slender (see |
P. ningxiaensis |
7 | Dorsal connective clearly twisted dorsally in lateral aspect (see |
P. tiliae |
– | Dorsal connective clearly twisted ventrally in lateral aspect (Fig. |
P. cudraniae |
Holotype ♂, China: Hunan Province, Badagongshan National Natural Reserve, Tianpingshan, 5.viii.2013, collected by Hu Li. Paratypes 1 ♂, same data as holotype, except 3.viii.2013; 1 ♀, Guizhou Province, Shiqian County, Fodingshan National Natural Reserve, 15.viii.1991, collected by Xiang-Sheng Chen.
Body color
(Figs
Body appearance
(Figs
Male genitalia
(Figs
Pediopsis albopicta sp. nov. 1 male habitus, dorsal view 2 male habitus, lateral view 3 face 4 forewing 5 male pygofer and subgenital plate, lateral view 6 dorsal connective, lateral view 7 style, lateral view 8 connective, ventral view 9 connective, lateral view 10 aedeagus, lateral view 11 aedeagus, ventral view. Scale bars: 1 mm (1, 2); 0.5 mm (3).
Body length (including tegmen): 4.3 mm.
China (Hunan and Guizhou provinces).
The specific epithet of the new species is derived from the Latin words albus (white) and picta (spot), referring to the white tip of the mesonotum and white spots on the forewing veins.
This species can be readily separated from other congeners by the contrasting color pattern of its mesonotum, white spotted forewing veins, and different shape of the aedeagus and dorsal connective.
Holotype ♂, China: Yunnan Province, Lushui City, Pianma Town, 26°0'34"N, 98°37'55"E, 26.v.2019, collected by Jia-Jia Wang and Chao Zhang.
Body color
(Figs
Body appearance
(Fig.
Male genitalia
(Figs
Pediopsis pianmaensis sp. nov. 12 male habitus, dorsal view 13 face 14 forewing 15 male pygofer and subgenital plate, lateral view 16 dorsal connective, lateral view 17 style, lateral view 18 connective, dorsal view 19 connective, lateral view 20 aedeagus, later view 21 aedeagus, ventral view. Scale bars: 1 mm (12, 14); 0.5 mm (13).
Body length (including tegmen): 5.1 mm.
China (Yunnan Province).
The specific epithet refers to the type locality of the new species, Pianma Town (Yunnan Province), combined with the Latin suffix -ensis, meaning “pertaining to”.
The new species can be distinguished from all other congeners by its darker body color, forewing with two ante-apical cells, simple aedeagus, and S-shaped dorsal connective.
Pediopsis bannaensis Yang & Zhang, 2015: 488, figs 29–39.
This species was described from the holotype and paratype male from China deposited in the Northwest A&F University, Yangling, China (NWAFU) and three male paratypes from Thailand in the Illinois Natural History Survey, Champaign, USA (INHS). However, there are some ambiguities in the original description. Firstly, if the genitalia are drawn accurately, two different species appear to have been figured. The genitalia of one species were shown undissected in fig. 33 of the original description, and based on the aedeagus, the dissected parts of another species were shown in figs 34–39. The aedeagus shown in fig. 33 is the one described, i.e., “Aedeagus strongly tapered from wide base to narrow apex in lateral aspect”. Enquiries made by one of us (Webb) indicate that there are three (not two) Chinese specimens of the species present in the NWAFU collection, with the original type data, all without type labels. Of these specimens only one is dissected and matches fig. 33. Other enquiries made regarding the paratypes in INHS indicate that their aedeagi also match fig. 33. All type series specimens match the habitus images in the original description with respect to general appearance and color pattern, particularly the long dark basal triangles of the mesonotum. However, unaccountably none match the actual specimen imaged based on the leg position in the lateral habitus figure (
Pediopsis femorata Hamilton, 1980: 919.
Pediopsoides femorata
–
Pediopsis femorata
–
This species was described based on the female type from Taiwan island, China. Subsequently,
We are very grateful to Dr Dmitri Yu. Tishechkin (M.V. Lomonosov Moscow State University, Moscow) for comments about the status of the new species described here, and to Dr Matt Bertone (North Carolina State University, Raleigh) for taking photos of Pediopsis femorata. We thank Drs Xiang-Sheng Chen, Jia-Jia Wang, and Chao Zhang (GUGC) for providing specimens for our study. This project was supported by a National Natural Science Foundation of China (No. 32000329), a Scientific Research Program Funded by Shaanxi Provincial Education Department (No. 21JK0568), and a “City-University Co-construction” Scientific Research Project for State Key Laboratory of Biological Resources and Ecological Environment of Qinling-Bashan (No. SXJ-2102).