Neunkanodes bispinatus, Hou, Xiao-Hui, Yang, Lin & Chen, Xiang-Sheng, 2014

Hou, Xiao-Hui, Yang, Lin & Chen, Xiang-Sheng, 2014, Review of the Oriental genus Neunkanodes Yang (Hemiptera: Fulgoromorpha: Delphacidae) with descriptions of two new species, Zootaxa 3795 (2), pp. 174-180 : 175-177

Neunkanodes bispinatus sp. nov.

( Figs 1–12 )

Measurement. Length of body 2.90–3.00 mm (male), 3.60 mm (female); including forewing 4.85–5.00 mm (male), 5.95 mm (female); forewing length 4.50 mm (male), 5.40 mm (female).

Coloration. General color yellowish brown. Median line of frons, vertex, pro- and mesonotum, commissural suture white. Areas between carinae of frons somewhat black. Abdomen somewhat yellowish white. Pygofer yellowish.

Head and Thorax. Vertex wider submedially than long at base about 1.2:1, apical margin transverse, lateral carinae nearly straight, submedian carinae not really uniting at apex, basal compartment wider at base than greatest length about 1.1:1. Frons longer in middle line than wide at widest part about 2.8:1, widest at middle, median carina simple. Post-clypeus wider at base than frons at apex, very long, longer than half of frons. Antennae reaching frontoclypeal suture, basal segment longer than wide, shorter than second about 1:2.4. Post-tibial spur with 22–25 teeth. Tegmina longer than widest part about 3.2:1.

Male Genitalia. Anal segment of male with lateroapical angles widely separated, each produced in a long, stout process, gradually narrowing near middle, obtuse at apex. Pygofer in profile slightly wider ventrally than dorsally, at caudal margin strongly produced caudodorsad in a large plate-like process, with 2 spine-like processes at apex margin, in posterior view opening longer than wide, ventral margin planus, without medioventral process. Phallus somewhat compressed, long and tubular, C-shaped and strongly bent ventrad, broad at base, abruptly narrowing to apex, with one shorter, spinous process at middle directed caudad. Diaphragm broad, dorsal margin with a node protruding cephalad to supporting phallus, ventral margin with a thumb-like process directed caudad. Genital styles very long, slender, sinuate, divergent apically, quadrate at base, abruptly narrowing at basal 1/3, laterobasal angle with long, spine-like process, distinct at lateral view.

Type Material. Holotype ♂, CHINA: Yunnan Province, Pianma (26°03’N, 98’24’E), Lushui, Nujiang, 17–19 Jun. 2011, lamping, collected by J.-K. Long. Paratypes: 3♀♀, same data as holotype.

Host plant. Unknown.

Distribution. South China (Yunnan).

Remarks. This new species is similar to N. unispinatus sp. nov., but can be distinguished from the latter by the following features: anal segment each produced in a longer and stouter process; pygofer produced in a plate-like process, with 2 long spine-like processes at apex, without medioventral process; phallus with one shorter process at middle; genital styles at basal angle with slender process. The structural features of male genitalia are distinctly different from other known species of the genus.

Etymology. The specific name refers to the lobe of pygofer at caudal margin with two spine-like processes.

Figures

FIGURES 1 – 12. Neunkanodes bispinatus s p. nov. (1) Head and thorax, dorsal view; (2) Frons and clypeus; (3) Forewing; (4) Male genitalia, posterior view; (5) Same, left side view; (6) Pygofer, left side view; (7) Same, posterior view; (8) Anal segment, aedeagus and genital style, left lateral view; (9) Anal segment, posterior view; (10) Anal segment, left side view; (11) Aedeagus, left side view; (12) Genital style, left side view. Scale bars = 0.5 mm (Figs 1 – 3), 0.2 mm (Figs 4 – 7), 0.1 mm (Figs 8 – 12).