Kirbyana projecta, Chen & Zhi, 2023

Chen, Xiang-Sheng & Zhi, Yan, 2023, Taxonomic study of the Eucarpiini (Hemiptera: Fulgoromorpha: Cixiidae) from China, Zootaxa 5347 (1), pp. 1-100 : 64-68

Kirbyana projecta sp. nov.

( Figs 43‒45 )

Description. Body length: male 4.7‒5.0 mm (n = 3), female 5.2 mm (n = 1).

Coloration. General color brown ( Fig. 43A–E ). Eyes dark brown, ocelli light yellow, semitransparent. Vertex, face, frons, pronotum and mesonotum brown, speckled with small pale spots. Rostrum yellowish brown. Forewing semi-translucent; pale brown, apical 2/3 yellowish brown, a large dark brown spot near Cu fork, and small brown spots on the ends of longitudinal veins, stigma yellowish brown. Hind tibiae brown and abdominal sternites dark brown.

Head and thorax. Vertex ( Figs 43C , 44A ) broad, 2.0 times wider than long; anterior margin truncated, posterior margin archedly recessed. Frons ( Figs 43D , 44B ) widest slight below the level of antennae, 1.2 times wider than long; frontoclypeal suture nearly concave into an arch; middle carina with basal half absent; lateral carinae distinct and slightly elevated. Pronotum ( Figs 43C , 44A )1.8 times longer than vertex; median carina distinct, posterior margin nearly at right angle. Mesonotum 1.4 times longer than pronotum and vertex combined. Forewing ( Fig. 44C ) 2.3 times longer than wide, with 11 apical and 6 subapical cells; fork Sc+RP basad of fork CuA 1 +CuA 2, first crossvein r-m basad of fork MP, RP two branches, MP with five terminals: MP 11, MP 12, MP 2, MP 3, and MP 4, fork MP 1 +MP 2 basad of fork MP 3 +MP 4. Metatibiotarsal formula: 6/8‒9/9, second segment of hind tarsus with 4 platellae.

Male genitalia. Pygofer ( Fig. 44D, E ) symmetrical, dorsal margin concave and U-shaped, slightly widened towards apex in ventral view; in lateral view, lateral lobes triangular, caudally extended, caudal margin with a bulged projection at dorsal 1/3, medioventral process round in ventral view. Anal segment ( Fig. 44D, F ) broad, tubular, dorsal margin almost straight, ventral margin extremely extended, apical lobes round in lateral view; 1.5 times longer than wide in dorsal view; anal style strap-shaped, beyond anal segment. Gonostyli ( Fig. 44D, E, G ) symmetrical in ventral view; in inner lateral view, dorsal margin bending inwards in a right angle in the middle, apical part acute. Aedeagus ( Fig. 44H–K ) with total of five processes. Right apex of periandrium with a medium-sized spinous process, which basal 2/3 straight and apical 1/3 curved, apex left- dorsocephalically directed; the apex of the ventral margin of periandrium with a long spinous process, slightly curved and ventrocephalically directed; left side of periandrium with two spinous processes, one originating from basal 1/3, curved and dorsocaudally directed, the other one on the apex, slender, slightly curved and ventrocephalically directed. Endosoma (=flagellum) moderately sclerotised, relatively short, generally curved to the right, dorsal margin with a straight spinous process, cephalically directed.

Female genitalia. Posterior margin of pregenital sternite concave.Tergite IX( Fig. 45A, D ) moderately sclerotised, with length almost equal to width in caudal view. Anal tube ( Fig. 45A, C ) short, nearly rectangular, slightly widened towards apex, 1.1 times wider than long in dorsal view; dorsal and ventral margins slightly convex in lateral view, anal styles strap-shaped. Gonapophysis VIII ( Fig. 45E ) elongate, and slightly curved upwards. Gonapophysis IX ( Fig. 45F ) with one middle tooth, at a distance ratio, between middle tooth to apex and length of denticulate portion, of 1.6. Gonoplac ( Fig. 45G ) rod-like, 4.3 times longer than wide. Posterior vagina ( Fig. 45H, I ) elongate. The base of the ventral wall of posterior vagina each with a nearly quadrilateral sclerite at left and right sides and a nearly triangular sclerite in the middle aera; the dorsal wall with a large transverse nearly oval sclerite basally.

Type material. Holotype: ♂, CHINA: Laiyanghe (22°36’N, 101°0’E), Simao City , Yunnan Province, 23 August 2014, leg. Zheng-Xiang Zhou; paratypes: 2♂♂ 1♀, same data as holotype; 1♂, Menghai County (21°57’N, 100°27’E), Yunnan Province, 13 July 2013, leg. Ji-Chun Xing.

Host plant. Unknown.

Distribution. China (Yunnan).

Remarks. Male genitalia of K. projecta sp. nov. are similar to those of K. spinata sp. nov., but differ in: (1) the spinous process on ventral margin of periandrium strong and broad (the spinous process on ventral margin of periandrium weakly sclerotized in K. spinata ); (2) the spinous process on right side of periandrium shorter than 1/2 length of periandrium (the spinous process on right side of periandrium longer than 1/2 length of periandrium); (3) the caudal margin of pygofer with a bulged projection (the latter without the same projection).

Etymology. The specific name refers to the caudal margin of the pygofer with a bulged projection.

Figures

FIGURE 43. Kirbyana projecta sp. nov., male. A. Habitus, dorsal view; B. Habitus, lateral view; C. Head and thorax, dorsal view; D. Face, ventral view; E. Head, lateral view. Scale bars: 0.5 mm.

FIGURE 44. Kirbyana projecta sp. nov., male. A. Head and thorax, dorsal view; B. Face, ventral view; C. Forewing; D. Genitalia, lateral view; E. Pygofer and gonostyli, ventral view; F. Anal segment, dorsal view; G. Gonostyli, inner lateral view; H. Aedeagus, right side; I. Aedeagus, left side; J. Aedeagus, dorsal view; K. Aedeagus, ventral view. Scale bars: 0.5 mm (A, B, D–K); 1.0 mm (C).

FIGURE 45. Kirbyana projecta sp. nov., female. A. Genitalia, lateral view; B. Genitalia, ventral view; C. Anal segment, dorsal view; D. Tergite IX, caudal view; E. Gonapophysis VIII and gonocoxa VIII, ventral view; F. Gonapophysis IX, lateral view; G. Gonoplac, lateral view; H. Posterior vagina, ventral view; I. Posterior vagina, dorsal view. Scale bars: 0.5 mm.