Sinonissus longicaudus Chang & Chen

Chang, Zhi-Min, Yang, Lin, Long, Jian-Kun & Chen, Xiang-Sheng, 2019, Three new species of the planthopper genus Sinonissus Wang, Shi & Bourgoin, 2018 from southwest China (Hemiptera, Fulgoromorpha, Issidae), ZooKeys 870, pp. 117-135: 117

publication ID

http://dx.doi.org/10.3897/zookeys.870.34417

publication LSID

lsid:zoobank.org:pub:5ED113C7-E9AF-44BA-AE8E-8D0103FC5272

persistent identifier

http://treatment.plazi.org/id/1F35D66B-216E-5505-9261-C358A3A07548

treatment provided by

ZooKeys by Pensoft

scientific name

Sinonissus longicaudus Chang & Chen
status

sp. nov.

Sinonissus longicaudus Chang & Chen   sp. nov. Figs 7 View Figures 1–8 , 8 View Figures 1–8 , 51-60 View Figures 51–60 , 61-69 View Figures 61–69

Type material.

Holotype: ♂, China: Sichuan, Emeishan, Da’e Village (29°33'N, 103°24'E), 12-14 July 2010, Y-L Zheng leg.; paratypes: 1♂6♀♀, same data as holotype, Y-L Zheng and P Zhang leg.; 1♂1♀, Sichuan, Emeishan (29°30'N, 103°20'E), 3 Aug. 2012, H Li leg..

Diagnosis.

This species is similar to S. brunetus   but can be distinguished from the latter by aedeagus ( Fig. 59 View Figures 51–60 ) with long flagellate process in the middle in lateral view; phallobase ( Fig. 60 View Figures 51–60 ) with ventral lobe triangular, apical margin extremely narrow, the basal part broad in ventral view.

Description.

Body length: male 3.38-3.63 mm, female 4.05-4.36 mm. Forewing: male 2.74-3.01 mm, female 3.27-3.62 mm.

Coloration. General color pale yellow to pale yellowish brown ( Figs 7 View Figures 1–8 , 8 View Figures 1–8 ). Vertex, pronotum and mesonotum ( Fig. 51 View Figures 51–60 ) pale yellow. Eyes brown ( Fig. 52 View Figures 51–60 ). Forewings ( Fig. 7 View Figures 1–8 ) pale yellow or yellowish brown, longitudinal veins pale brown, transverse veins pale white. Legs yellow brown, with tips of spines on hind tibiae and tarsi black.

Head and thorax. Head ( Fig. 51 View Figures 51–60 ) including eyes slightly narrower than pronotum (0.73: 1.00). Vertex ( Fig. 51 View Figures 51–60 ) shorter in middle than the wide at base (1.00: 3.33). Frons ( Fig. 53 View Figures 51–60 ) longer in middle than the widest breath (1.14: 1.00), median carina with the apical margin straight, nearly reaching to frontoclypeal suture. Clypeus triangular, with obscure median carina ( Fig. 53 View Figures 51–60 ). Pronotum ( Fig. 51 View Figures 51–60 ) with median carina obscure, lateral carina reaching to the posterior margin. Mesonotum ( Fig. 51 View Figures 51–60 ) triangular, with median carina obvious. Forewings ( Fig. 54 View Figures 51–60 ) elongate, 1.78 times as long as maximum breadth. Hindwings ( Fig. 55 View Figures 51–60 ) reduced, small, with two veins. Hind tibiae each with two lateral spines, spinal formula of hind leg 8 –8– 2.

Male genitalia. Anal tube ( Fig. 57 View Figures 51–60 ) irregularly pentagonal in dorsal view, widest in the middle, longer in midline than the width (1.41: 1.00), ventral margin nearly straight. Anal style sturdy and short, located at the base half of anal tube ( Fig. 57 View Figures 51–60 ). Pygofer ( Fig. 56 View Figures 51–60 ) with dorsal margin narrower than ventral margin. Genital styles ( Fig. 56 View Figures 51–60 ) rectangular, dorsal margin and ventral margin nearly parallel. Capitulum of genital styles relatively short, irregularly triangular, neck obvious ( Fig. 58 View Figures 51–60 ). Phallobase ( Figs 59 View Figures 51–60 , 60 View Figures 51–60 ) with dorsal lobe small horned cystiform process at apical part ( Fig. 59 View Figures 51–60 : a), with relatively straight thin rod-like process in apical 1/4 ( Fig. 59 View Figures 51–60 : b) in lateral view; lateral lobe splitting into two stout branches, the apical margin arced in ventral view; ventral lobe short, reaching to 5/6 of dorsal lobe in lateral view, in ventral view the apical part triangular, apical margin extremely narrow, the basal part broad ( Figs 59 View Figures 51–60 : c, 60: c). Aedeagus with long flagellate process in the middle in lateral view, directed to dorso-anterior ( Fig. 59 View Figures 51–60 : d).

Female genitalia ( Figs 61-69 View Figures 61–69 ). Anal tube ( Fig. 64 View Figures 61–69 ) nearly oval, longer in middle than the widest breadth (1.29: 1.00), the apical margin arced, with obvious membranous triangular protuberance, the widest near the basal 1/3. Anal style long, located at the basal third of anal tube ( Fig. 64 View Figures 61–69 ). Anterior connective lamina of gonapophysis VIII with obviously sclerous triangular process in basal dorsal margin, with two lateral teeth bearing two or three keels in lateral group and two or three apical teeth ( Fig. 65 View Figures 61–69 ). Posterior connective lamina of gonapophysis IX ( Figs 66 View Figures 61–69 , 67 View Figures 61–69 ) relatively narrow, median field asymmetrical, with tubercle-like prominences (medial dorsal process) ( Fig. 66 View Figures 61–69 ); ventroposterior lobes bent at acute angle (posterior ventral lobes) ( Fig. 67 View Figures 61–69 ). Gonoplacs ( Fig. 68 View Figures 61–69 ) without keels. Hind margin of sternum VII median distinctly concave in ventral view ( Fig. 69 View Figures 61–69 ).

Etymology.

This new species is named for the presence of one long flagellate process of aedeagus.

Host plant.

Unknown.

Distribution.

China (Sichuan).

Remarks.

This new species is distinguished from other species of this genus by: 1) aedeagus with long flagellate process in the middle in lateral view, directed to dorso-anterior ( Fig. 59 View Figures 51–60 : d); 2) phallobase with dorsolateral lobe relatively straight, thin, rod-like process in lateral view ( Fig. 59 View Figures 51–60 : b), ventral lobes triangular, apical margin extremely narrow, basal part broad in ventral view ( Fig. 60 View Figures 51–60 : c); 3) female genitalia with posterior connective lamina of gonapophysis IX median field asymmetrical, with tubercle-like prominences ( Fig. 66 View Figures 61–69 ).