Kodaianella furcata Chang & Chen, 2020

Chang, Zhi-Min, Yang, Lin & Chen, Xiang-Sheng, 2020, First records of the genera Sivaloka Distant, 1906, with two new species from China, and description of a new species of genus Kodaianella Fennah, 1956 (Hemiptera, Fulgoromorpha, Issidae), ZooKeys 917, pp. 85-104 : 85

Kodaianella furcata Chang & Chen sp. nov. Figs 1-13

Type material.

Holotype: ♂, China: Guangxi, Nonggang National Nature Reserve (22°28'N, 106°58'E), 8 May 2011, H Li leg.; paratypes: 5♂♂, same data as holotype (IEGU); 1♂, Guangxi, Nonggang National Nature Reserve (22°28'N, 106°58'E), 7-8 May 2012, H Li and N-N Yang, leg.

Diagnosis.

This species is similar to K. longispina Zhang & Chen, 2010 in appearance, but it differs from the latter in having the phallobase with dorsal lobe bearing one rod-like process near its apical part in lateral view (Fig. 12a ); the phallobase with ventral lobe distinct short, apical part finger-liked in ventral view (Fig. 13c ); and the aedeagus in lateral view, with a forked and hooked process near the apical 1/3 (Fig. 12d ).

Description.

Body length: male 3.94-4.18 mm; forewing: male 3.16-3.45 mm.

Coloration.

General color brown (Figs 1 , 2 ). Vertex, pronotum, and mesonotum (Fig. 3 ) black-brown. Frons (Fig. 5 ) black-brown, with pale yellow verrucae along base and lateral margins. Clypeus (Fig. 5 ) yellow-brown. Compound eyes black-brown, ocelli pale green (Fig. 4 ). Forewings (Fig. 2 ) yellow-brown, with dark spots. Legs yellow-brown, with tips of spines on hind tibiae and tarsi black.

Head and thorax.

Head (Fig. 3 ) including eyes, slightly narrower than pronotum (0.96: 1.00). Vertex (Fig. 3 ) shorter in middle than the width at base (0.43: 1.00), with median carina linear; anterior margin slightly convexly arched; posterior margin obviously obtusely concave. Frons (Fig. 5 ) shorter in middle than the widest breadth (0.60: 1.00); median carina obvious and straight, reaching to 2/3 level of frons. Clypeus (Fig. 5 ) triangular, without median carina. Pronotum (Fig. 3 ) with median carina obscure, lateral carina reaching to the posterior margin. Mesonotum (Fig. 3 ) with median carina obscure. Forewings (Fig. 6 ) 1.60 times as long as maximum breadth; with wide "hypocostal plate"; ScP and RP convergent near base, ScP and RP veins long, nearly reaching apical margin; MP bifurcating two branches near basal 1/3, MP1 forked near apical 1/3; CuA forked into two branches near middle; CuP present, Pcu and A1 united near middle of clavus. Hindwings (Fig. 7 ) with ScP+R and M simple, not forked, CuA forked near apical part, with one vein between R and M, M and CuA1; and Pcu and A11 jointed near apical 1/4, without short transverse vein between Pcu + A11 and A12; A2 simple, reaching to 2/3 of A2 lobe. Spinal formula of hind leg (2)8/8/2.

Male genitalia.

Anal tube (Fig. 9 ) longer in midline than the width (2.49: 1.00) in dorsal view; lateral margins nearly parallel and widest in apical part; apical margin nearly truncated, with unobvious small, angular process near lateral margin. Anal style (Fig. 9 ) stout and long, located at the base 2/5 of anal tube, surpassing the opening of anal pore. Pygofer (Fig. 8 ) irregularly rectangular; dorsal margin slightly broader than ventral margin; anterior margin arched near dorsal 1/3; posterior margin nearly straight. Genital styles (Figs 8 , 10 ) relatively triangular; anterior margin without triangular process; posterior margin with triangular process. Capitulum of genital styles irregularly triangular, with small irregular triangular, relatively long and stout neck (Fig. 11 ). Phallobase (Figs 12 , 13 ) with dorsal lobe cystiform near apical part, with stout rod-like process (Figs 12a , 13a ) in apical 1/6, directed to posterior, with dorso-lateral lobe with short hook-like process (Fig. 12b ), pointed to dorsal margin in lateral view; lateral lobe splitting into two stout branches; ventral lobe membranous, apical part narrow, surface with microvilli in lateral view (Fig. 12c ); ventral lobe in ventral view obviously shorter than dorsal lobe, with apical part projecting into finger-like process in middle (Fig. 13c ). Aedeagus (Figs 12 , 13 ) with long, hooked process near apical 1/3 in ventral view, tip of process directed to ventro-posterior in lateral view (Fig. 12d ); in ventral view, hooked process forked into asymmetrical hooks (Fig. 13d ).

Etymology.

The new species is derived from the Latin word " furcata ", in reference to the aedeagus, which bears a forked, hooked process.

Host plant.

Unknown.

Distribution.

China (Guangxi).

Figures

Figures 1 - 13. Kodaianella furcata Chang & Chen, sp. nov. 1 habitus, dorsal view 2 habitus, lateral view 3 head and thorax, dorsal view 4 head and thorax, lateral view 5 head, ventral view 6 forewing 7 hindwing 8 male genitalia, lateral view 9 male anal segment, dorsal view 10 genital styles, lateral view 11 capitulum of genital styles, ventral view 12 phallobase and aedeagus, lateral view 13 phallobase and aedeagus, ventral view. Scale bars: 0.5 mm. Abbreviations: a = rod-like process; b = hook-like process; c = ventral lobe; d = long forked process.