Neunkanodes unispinatus, 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 : 180

Neunkanodes unispinatus sp. nov.

( Figs 26–38 )

Measurement. Length of body 2.35–2.60 mm (male), 2.80 mm (female); including forewing 4.15–4.50 mm (male), 5.05 mm (female); forewing length 3.95 mm (male), 4.20 mm (female).

Coloration. General color reddish brown. Median line of frons, vertex, pro- and mesonotum, commissural suture white. Areas between carinae of frons somewhat blackish brown. Abdomen somewhat dirty yellow to reddish brown. Pygofer brown.

Head and Thorax. Vertex longer submedially than wide at base about 1.1:1, apical margin distinctly emarginate at both sides of median point, lateral carinae concave, submedian carinae not really uniting at apex, basal compartment greatest longer than width at base about 0.9:1. Frons longer in middle line than wide at widest part about 2.5:1, widest at level of ocelli, median carina simple. Post-clypeus wider at base than frons at apex, moderately long, longer than half of frons. Antennae reaching over frontoclypeal suture, basal segment longer than wide, shorter than second about 1:3.5. Post-tibial spur with 23–25 teeth. Tegmina longer than widest part about 3.7:1.

Male genitalia. Anal segment of male with lateroapical angles widely separated, each produced in a huge, stout spinose process. Pygofer in profile distinctly wider ventrally than dorsally, at caudal margin strongly produced caudodorsad in a large plate-like process, with 2 small tooth at apex, in caudodorsal view opening longer than width, with a long, spinous process at medioventral, apical margin slightly concave medially. Phallus somewhat compressed, long and tubular, L-shaped and strongly bent ventrad, broad at base, abruptly narrowing to apex, with one slender, long process arising from dorsal margin at basal 1/3, directed ventral. 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 short, 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: 1♂, 3♀♀, same data as holotype.

Host plant. Unknown.

Distribution. South China (Yunnan).

Remarks. This new species is similar to N. bispinatus sp. nov., but can be distinguished from the latter by the following features: anal segment each produced in a shorter and slender process; pygofer at plate-like process of caudal margin with 2 small teeth-like processes at apex, with a spine-like medioventral process; phallus with one slender and longer process at basal 1/3; genital styles basal angle with shorter process. The structural features of male genitalia of this species are distinctly different from other known species in this genus.

Etymology. The specific name refers to the pygofer with a long, spinous process at medioventral margin.

Figures

FIGURES 26 – 38. Neunkanodes unispinatus sp. nov. (26) Head and thorax, dorsal view; (27) Frons and clypeus; (28) Forewing; (29) Male genitalia, posterior view; (30) Same, left side view; (31) Pygofer, left side view; (32) Same, posterior view; (33) Anal segment, aedeagus and genital style, left lateral view; (34) Anal segment, posterior view; (35) Anal segment, left side view; (36) Aedeagus, left side view; (37) Genital style, left side view; (38) Pygofer, ventral view. Scale bars = 0.5 mm (Figs 26 – 28), 0.2 mm (Figs 29 – 32), 0.1 mm (Figs 33 – 38).