Research Article |
Corresponding author: Xiang-Sheng Chen ( chenxs3218@163.com ) Academic editor: Mike Wilson
© 2020 Zhi-Min Chang, Lin Yang, Xiang-Sheng Chen.
This is an open access article distributed under the terms of the CC0 Public Domain Dedication.
Citation:
Chang Z-M, Yang L, Chen X-S (2020) Two new genera with species of the tribe Sarimini (Hemiptera, Fulgoromorpha, Issidae) from China. ZooKeys 956: 31-47. https://doi.org/10.3897/zookeys.956.47784
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Tempsarima Chang & Chen, gen. nov. (Hemiptera: Issidae: Sarimini), with type species Tempsarima bipunctata Chang & Chen, sp. nov. and Tetrichina Chang & Chen, gen. nov. (Hemiptera: Issidae: Sarimini), with type species Tetrichina trihamulata Chang & Chen, sp. nov. are described and illustrated from Hainan Province of China. The female genitalia characters of Issidae are discussed.
Female genitalia, issid, morphology, Oriental region, planthopper, taxonomy
The new classification of Issidae Spinola, 1839 with three subfamilies (
The subfamily Hemisphaeriinae Melichar, 1906 sec.
While sorting out the specimens from Hainan Province (China), we found two new genera and species belonging to the tribe Sarimini, which are described here: Tempsarima Chang & Chen, gen. nov. with type species T. bipunctata Chang & Chen, sp. nov. and Tetrichina Chang & Chen, gen. nov. with type species T. trihamulata Chang & Chen, sp. nov. In addition, the female genitalia of T. bipunctata Chang & Chen, sp. nov., as a special type of female genitalia in Sarimini, is recorded and discussed.
The morphological terminologies follow Chan & Yang (1994) for the head and body,
The examined specimens are all deposited in the Institute of Entomology, Guizhou University, Guiyang, China (IEGU).
Subfamily Hemisphaeriinae Melichar, 1906 sec.
Tribe Sarimini Wang, Zhang & Bourgoin, 2016
Tempsarima bipunctata Chang & Chen, sp. nov., here designated.
This genus is similar to the genus Sarimodes Matsumura, 1916, but it differs from the latter by: 1) frons smooth (Fig.
Body medium in size.
Head and thorax. Width of head including eyes obviously narrower than pronotum (Fig.
Tempsarima bipunctata Chang & Chen, sp. nov. 5 adult, dorsal view 6 same, lateral view 7 head and thorax, dorsal view 8 same, lateral view 9 head, ventral view 10 forewing 11 hindwing 12 male genitalia, lateral view 13 male anal segment, dorsal view 14 capitulum of genital styles, posterior view 15 aedeagus and phallobase, lateral view 16 same, ventral view. Scale bars: 0.5 mm. Abbreviations: a–irregular triangular prominence, b–small claviform process, c–convex protrusion, d–duck mouth-liked process, e–long hooked process, f–lobe-like process, g–small lamina-like process, h–mushroom-liked, i–short hooked process.
Male genitalia. Anal tube (Fig.
Female genitalia
(Figs
Tempsarima bipunctata Chang & Chen, sp. nov. 17 female genitalia, dorsal view 18 same, lateral view 19 same, ventral view 20 female anal segment, dorsal view 21 same, lateral view 22 anterior connective lamina of gonapophyses VIII, lateral view 23 posterior connective lamina of gonapophyses IX, dorsal view 24 same, lateral view 25 gonoplacs, lateral view 26 same, dorsal view 27 sternite VII, ventral view. Scale bars: 1 mm (17–19), 0.5 mm (20–27). Abbreviations: tl–teeth in inner lateral margin, mf–median field, fp–flagelliform process.
China (Hainan).
The generic name is derived from a free combination between the genus names Tempsa Stål, 1866 (referring to the similar female genitalia) and Sarima Melichar, 1903 (type genus in Sarimini). The gender is feminine.
The new genus markedly differs from the other genera in Sarimini: 1) frons smooth, with medical carina stout, reaching frontoclypeal suture (Fig.
Holotype : ♂, China: Hainan, Bawangling (22°28'N, 106°57'E), 13 March 2014, S-Y Xu and J-K Long leg.; paratypes: 10♂♂ 3♀♀, Hainan, Bawangling (22°28'N, 106°57'E), 30 April 2017, L-J Yang leg.; 4♀♀, Hainan, Diaoluoshan (18°39'N, 109°55'E), 15 April 2017, L-J Yang leg.
This new species is distinguished by the following characters: vertex with four black brown bands along lateral margins and median carina (Fig.
Body length (from apex of vertex to tip of forewings): male 7.80–8.31 mm (N = 11), female 8.80–9.30 mm (N = 7); forewing: male 6.50–7.80 mm (N = 11), female 7.60–9.30 mm (N = 7).
Coloration. General colour yellow-green (Fig.
Head and thorax. Head (Fig.
Male genitalia. Anal tube (Fig.
Female genitalia. Anal tube (Figs
China (Hainan).
The species name is derived from a combination of the prefix “bi-” and Latin noun “punctata”, suggesting the paired dark spots of mesonotum.
Unknown.
Tetrichina trihamulata Chang & Chen, sp. nov., here designated.
Diagnosis. Related to the genus Sarimodes Matsumura, 1916, but it is distinguished as follows: frons (Fig.
Body medium size, slightly flat in dorsal view.
Head and thorax. Width of head including eyes narrower than pronotum (Fig.
Tetrichina trihamulata Chang & Chen, sp. nov. 28 adult, dorsal view 29 same, lateral view 30 head and thorax, dorsal view 31 same, lateral view 32 head, ventral view 33 forewing 34 hindwing 35 male genitalia, lateral view 36 male anal segment, dorsal view 37 capitulum of genital styles, posterior view 38 aedeagus and phallobase, lateral view 39 same, ventral view. Scale bars: 0.5 mm. Abbreviations: a–obvious triangular prominence, b–unobvious triangular prominence, c–lobed process, d–bidirectional hooked process, e–irregularly quadrangular prominence, f–lobe-like process, g–long hooked process.
Male genitalia. Anal tube (Fig.
Female genitalia
(Figs
Tetrichina trihamulata Chang & Chen, sp. nov. 40 female genitalia, dorsal view; 41 same, lateral view 42 same, ventral view 43 female anal segment, dorsal view 44 anterior connective lamina of gonapophyses VIII, lateral view 45 posterior connective lamina of gonapophyses IX, dorsal view 46 same, lateral view 47 gonoplacs, lateral view 48 sternite VII, ventral view. Scale bars: 0.5 mm. Abbreviations: lf–lateral field of posterior connective lamina of gonapophyses IX; slf–sublateral field of posterior connective lamina of gonapophyses IX; mdp–medial dorsal process; pvd–posterior ventral lobes.
China (Hainan).
The generic name is derived from the arbitrary combination of generic name “Tetrica” and word “China”. The gender is feminine.
Holotype : ♂, China: Hainan Province, Jianfengling National Park (18°42'N, 108°51'E), 20 April 2014, W-C Yang leg.; paratypes: 3♂♂ 2♀♀, data same as holotype; 5♂♂, Hainan, Jianfengling (18°42'N, 108°51'E), 13–16 January 2011, J-K Long and P Zhang; 2♂♂2♀♀, Hainan, Bawangling National Nature Reserve (22°28'N, 106°57'E), 7–11 January 2011, J-K Long and P Zhang; 2♂♂, Hainan Province, Datian National Nature Reserve (19°06'N, 108°47'E), 12–13 April 2013, J-K Long, J-C Xing and Y-B Zhang leg.
This new species looks like Sarimodes clavatus Meng & Wang, 2016 (
Body length: male 5.02–5.64 mm (N = 13), female 5.73–5.82 mm (N = 4); forewing: male 4.13–4.57 mm (N = 13), female 4.70–4.88 mm (N = 4).
Coloration. General colour yellow-green (Figs
Head and thorax. Head (Fig.
Male genitalia. Anal tube (Fig.
Female genitalia. Anal tube (Figs
China (Hainan).
The species name is derived from a combination of the prefix “tri-” and Latin noun “hamulata”, referring to the phallobase and aedeagus with three variously hooked processes.
Unknown.
Emeljanov (1990) proposed two types of female genitalia along with different functions: the piercing-type in order to pierce plant tissue for laying eggs, and the raking-type in order to cover eggs with secretions of female genitalia.
This work was supported by the Program of Excellent Innovation Talents, Guizhou Province (No. 20154021), the Talents Team for Technology Innovation of Resource Entomology (Grant No. Qianjiaohe [2015]71) and Key Laboratory for Information System and Development and Utilization of Insect Resources of Guizhou Province (Grant No. Qiankehe LH [2015]7685), National Natural Science Foundation of China [No. 31601886, 31472033, and 31093430], the International cooperation base for insect evolutionary biology and pest control [No. 20165802] and Science and Technology Program in Guizhou Province (Grant No. Qiankehe LH [2017]7267 and [2018]1032), Academic New Cultivation and Innovation Exploration Special Project of Guizhou University in 2017 and 2018 (Grant No. Qiankehe and Platform for talents [2017]5788, and [2018]5781-29), Youth Science and Technology Talent Development Project in the Education Department of Guizhou Province (No. Qianjiaohe KY [2017]103), and the Project funded by China Postdoctoral Science Foundation (No. 2017M613002).