Saigona maculata Zheng & Chen, 2021

Zheng, Yan-Li, Bourgoin, Thierry, Chen 1, Lin YangXiang-Sheng, Luo, Xu-Qiang & Luo, Guang-Jie, 2021, Two new species of the genus Saigona Matsumura (Hemiptera, Fulgoromorpha, Dictyopharidae) from China, ZooKeys 1054, pp. 185-200 : 185

Saigona maculata Zheng & Chen sp. nov.

Figures 19-22 , 23-31

Type locality.

Lang Ping town, Tianlin County, Guangxi Zhuang Autonomous Region, China.

Diagnosis.

(1) Head moderately long, longer than pronotum and mesonotum combined. Cephalic process relatively long and robust, somewhat upturned; (2) pygofer with posterior margin sinuate in lateral view; (3) aedeagus with phallobasal conjunctival processes unequal in length.

Description.

Measurement. ♂, BL: 15.7 mm; HL: 2.1 mm; HW: 0.8 mm; FWL: 11.8 mm.

Coloration. General color dark brown, marked with fuscous and ochraceous speckles (Figs 19-22 ). Vertex dark brown with a yellowish green spot at top. Genae brown, eyes brown, ocellus yellowish, antenna brown and areas surrounding ocellus and antenna beneath eye yellowish. Frons yellowish brown. Postclypeus and anteclypeus yellow. Pronotum brown with median carina yellowish; lateral, ventrally curved areas yellowish. Mesonotum fuscous, with a narrow, yellow stripe along median longitudinal carina. Abdomen fuscous, scattered white speckle, with median longitudinal green stripe. Forewing venation brown and stigma dark. Legs ochraceous. Genitalia black.

Head and thorax. Head (Figs 19-22 ) moderately long, longer than pronotum and mesonotum combined (5.1:1). Cephalic process relatively long and robust, somewhat upturned. Vertex (Fig. 20 ) with median carina very faint, only conspicuous at base, lateral carinate margins curved in front of eyes. Frons (Fig. 21 ) with lateral carinate reaching to the front of eyes, not to frontoclypeal suture. Pronotum (Figs 19 , 20 , 22 ) with median carina distinct, lateral carinae very faint; mesonotum tricarinate on disc, lateral carinae curved towards median carinae at front.

Fore wings (Figs 19 , 23 ) hyaline with Sc+R, M and Cu branched apically, longer than widest part, with length to maximum width ratio of 3.0; pterostigma distinct, with 2 cells, veins with numerous fuscous setae. costal margin distinctly expanded into a narrow, sclerotized costal area, without transverse veins; ScP+R branched apically; MP bifurcating MP1+2 and MP3+4 at basal 3/5 and beyond CuA; CuA forked into two branches near middle of forewing 14 apical cells between RP and CuA; Pcu and A1 fusing in apical 2/5 of clavus. Hindwings (Fig. 24 ) well developed. Legs moderately elongate, fore femora flattened and dilated; hind tibiae with 5 lateral black-tipped spines and 8 apical black-tipped teeth, spinal formula 8/(9-11)/(10-12).

Male genitalia. Pygofer (Figs 25-27 ) in lateral view with posterior margin slightly sinuate. Gonostyli (Figs 25 , 27 ) relatively large, broad in lateral view (Fig. 25 ), apex sharply rounded, apex sharply rounded, protruded posteriorly in lateral view on the outer surface of the gonostyli. Aedeagus with phallobasal conjunctival processes unequal in length, left one obviously longer than right one (Fig. 28 ); phallobase narrow and long, curved dorsally, with 2 apical membranous dorsal apical lobes (Fig. 31 ) sclerotized on both sides with circular membranous processes in the middle; ventral lobes (Fig. 30 ) large, membranous fold, with spines at base. Segment X (Figs 25 , 26 ) large, nearly triangular in lateral view; round in dorsal view, ratio of length to width at middle about 1.5:1.

Female. unknown.

Type material.

Holotype ♂, Lang Ping town, Tianlin County, Guangxi Zhuang Autonomous Region, 23 Apr. 2012, Zaihua Yang. Paratypes, 1♂, same as holotype.

Etymology.

The name of the new species is derived from the Greek word Saigona maculata (spotted), in reference to the vertex with a yellowish green spot at the apex.

Distribution.

China (Guangxi).

Remarks.

This species is similar to S. tenuisa Zheng, Yang & Chen, 2014 but can be distinguished from the latter by the pygofer with the posterior margin slightly sinuate in lateral view and the aedeagus with the phallobasal conjunctival processes unequal in length.

Figures

Figures 19 - 22. Saigona maculata Zheng & Chen sp. nov. 19 male, holotype, dorsal view 20 male, head and thorax, dorsal view 21 male, frons and clypeus, ventral view 22 male, head and pronotum, lateral view. Scale bars: 2 mm (19 - 22).

Figures 23 - 31. Saigona maculata Zheng & Chen sp. nov. 23 forewing 24 hindwing 25 genitalia, lateral view 26 pygofer and anal tube, dorsal view 27 pygofer and gonostyles, ventral view 28 aedeagus process 29 aedeagus, lateral view 30 aedeagus, ventral view 31 aedeagus, dorsal view. Scale bars: 2 mm (22 - 30), 0.5 mm (28 - 34).