Tetricodes parvispinus Chang & Chen

Chang, Zhi-Min, Yang, Lin, Long, Jian-Kun & Chen, Xiang-Sheng, 2017, Three new species of the Chinese planthopper genus Tetricodes Fennah (Hemiptera, Fulgoroidea, Issidae, Parahiraciini), ZooKeys 698, pp. 1-15 : 6-8

Tetricodes parvispinus Chang & Chen sp. n. Figs 3-4, 22-30

Type material.

Holotype; ♂, China: Guizhou, Anlong, Xianheping (24°58'N, 105°36'E), 28 Aug. 2012, W.-B. Zheng; paratypes: 2♂♂, China, Guizhou, Anlong, Xianheping (24°58'N, 105°36'E), 28 Aug. 2012, W.-B. Zheng and J.-K. Long.

Diagnosis.

This species is similar to Tetricodes anlongensis Chen, Zhang & Chang, 2014, all from Guizhou: Anlong, Xianheping, but can be distinguished from the latter by the anal tube (Fig. 28) irregular pentagonal in dorsal view, the apical margin truncated, the widest breath in apical 1/3; phallobase with small process in dorsal margin of long lobe-shaped process at base (Fig. 29b).

Description.

Body length: male 6.4-6.8 mm; Forewing: male 5.3-5.5 mm.

Coloration. General color yellowish green, with irregularly black mottling (Fig. 3). Eyes yellow to brown (Fig. 23). Frons (Fig. 24) with medium black protuberance with light median line running from the upper margin, with broad pale transverse clearer band under the black protuberance to nearly the basal 1/2 of face, reaching or surpassing ventrally level of compund eyes, and pale spots near lateral margins. Clypeus brown with yellow mark in base and rostrum brown. Pronotum (Fig. 22) with three pale vurrucae betwwen median carina and lateral carina. Forewings (Fig. 3) with irregularly black mottling near margins.

Head and thorax. Head (Fig. 22) including eyes narrower than pronotum (0.67: 1.00). Vertex (Fig. 22) shorter in middle than the wide at base (0.62: 1.00), disc of vertex without median carina. Frons (Fig. 24) flat, with median carina only present at base, longer in middle than the widest breath (1.34: 1.00). Clypeus triangular, with distinct median carina and rostrum surpassing mesotrochanters. Pronotum (Fig. 22) with median carina obscure, lateral carina not reaching to the posterior margin. Mesonotum (Fig. 22) triangular, with median carina obscure, Hind tibiae each with 4 spines, spinal formula of hind leg 8 –10– 2. Forewings (Fig. 25) elongate, 2.4 times as long as maximum breadth, ScP and Rp convergent near base, MP four branched, MP1+2 bifurcates apically, MP3+4 bifurcates at middle part, CuA simple, not forked; CuP present, Pcu and A1 uniting in basal 2/3 of clavus. Hindwings (Fig. 26) with two big lobes, anal lobe reduced.

Male genitalia. Anal tube (Fig. 28) irregular pentagonal in dorsal view, the apical margin truncated, the widest breath in apical 1/3. Anal style (Fig. 28) short, located in the middle of anal tube. Pygofer (Fig. 27) narrow and curved in lateral view, irregular subquadrate. Genital styles (Fig. 27) short, without triangular prominence near dorsal margin before capitulum; capitulum of genital styles relatively short, subtrapezoidal on short neck. Phallobase with dorsal lobe with irregular lobes (Fig. 29a) at apical part in lateral view, with small spine in dorsal margin of long lobe-shaped process in base (Fig. 29b); lateral lobe splitting into two stout branches, apical part subtriangular (Figs 29c, 30 c); ventral lobe short, ventral view ventral lobe with three lobe near apical part, the apical lobe narrowed (Figs 29d, 30d). Aedeagus with pair of big sheet-like processes at apical 1/3 in lateral view (Figs 29e, 30e).

Etymology.

This species epithet is derived from combination of Latin root prefix “parv-” and “spine”, referring to the small spine in the dorsal margin of basal long process of aedeagus.

Host plant.

Unknown.

Distribution.

China (Guizhou).