Neocarpia acutata Zhi & Chen

Zhi, Yan, Yang, Lin, Zhang, Pei & Chen, Xiang-Sheng, 2017, Taxonomic study of the genus Neocarpia Tsaur & Hsu, with descriptions of two new species from China (Hemiptera, Fulgoromorpha, Cixiidae), ZooKeys 695, pp. 19-35 : 22-23

Neocarpia acutata Zhi & Chen sp. n. Figs 1-4, 5-15, 16-24

Type material.

Holotype: ♂, China: Yunnan, Jinping County, Fenshuiling (22°86'N, 103°22'E), 8 June 2013, Liang-Jing Yang; paratypes: 1♂, 3♀♀, same data as holotype, Liang-Jing Yang and Ying-Jian Wang; 1♀, China: Yunnan, Pingbian County, Daweishan (22°81'N, 103°79'E), 5 June 2013, Liang-Jing Yang.

Description.

Body length: male 4.8-5.0 mm (N = 2), female 5.1-5.3 mm (N = 4); forewing length: male 4.5-4.8 mm (N = 2), female 4.8-5.0 mm (N = 4).

Coloration. General color brown (Figs 1-6) (blackish brown in female). Eyes brown, ocelli pale yellow. Vertex generally yellow, carinae brown to dark brown (except median carina milky). Face generally yellow, discal area brown to dark brown. Subapical segment of rostrum blackish brown, apical segment brown with dark brownish apex. Pronotum with discal areas and mesonotum with area between lateral carinae yellow, lateral areas brownish black. Forewing semihyaline, brown throughout; yellow stripes along the Y-veins, the triangle area between the Y-veins brownish black. Hind tibiae pale yellow. Ventral abdomen blackish brown.

Head and thorax. Vertex (Figs 1, 3, 5) broad, 3.0 times wider than long; anterior margin slightly produced, posterior margin convexly recessed. Frons widest slightly below the level of antennae, 1.4 times as long as wide; frontoclypeal suture nearly concave into an arch; middle carina complete; lateral carinae distinct and elevated. Pronotum (Figs 1, 3, 5) 3.4 times longer than vertex; median carina indistinct, posterior margin nearly at right angle. Mesonotum 1.6 times longer than pronotum and vertex combined. Forewing (Figs 2, 4, 7) amply exceeding the tip of abdomen, 2.6 times longer than wide, with six subapical cells; fork Sc+RP slightly basad of fork CuA1+CuA2, first crossvein r-m slightly basad of fork MA+MP; RP and MP bifid separately; fork MA1+MA2 basad of fork MP1+MP2. Hind tibia with six apical spines; chaetotaxy of hind tarsi: 7/8.

Male genitalia. Pygofer (Figs 8, 9), dorsal margin shallowly concave and U-shaped ventrally, widened towards apex; in lateral view, lateral lobes triangularly extended caudally. Anal segment (Figs 8, 10), dorsal margin almost straight, ventral margin convex in lateral view, apical margin convex and 1.6 times longer than wide in dorsal view; anal style strap-shaped, not beyond anal segment. Apical margin of genital styles (Figs 8, 11) with a small blunt process, dorsal margin bending inwards in the middle. Aedeagus (Figs 12-15) with five spinose processes. Right side of periandrium with a long and broad process, strongly curving near apex directed ventrocephally and a short acute process curved in the middle directed dorsocephally; ventral margin with a small triangular process at basal 1/3, directed ventrocaudally; flagellum moderately sclerotised, generally curved on left side; left side with a short process basally, curved and directed cephalad, and a straight process at apex directed ventrocephally.

Female genitalia. Pygofer (Figs 16-17, 19) moderately sclerotised, with length almost equal to width in caudal view. Anal tube (Figs 16, 18) short, length longer than wide in dorsal view, ventral margin straight in lateral view; anal styles relatively short and small, apical margin semicircular in dorsal view. Gonapophysis VIII (first valvula) (Fig. 20) elongate, and slightly curved upwards, 2/5 of its inner margin sinuate basally. Gonapophysis IX (second valvula) (Fig. 21), distance ratio between middle tooth to apex and length of denticulate portion is 1.72. Gonoplac (third valvula) (Fig. 22) rod-like, 4.2 times longer than wide, with width of spiculated area less than its 1/10. Posterior vagina (Figs 23-24) elongate, at terminal each lateral side with a sclerite respectively in ventral view; with a large transverse sclerite and several small sclerites in dorsal view; a long longitudinal sclerite in ventral view and a much shorter one in dorsal view on left side basally.

Distribution.

China (Yunnan).

Etymology.

The specific name is derived from the Latin word " acutata ", referring to the right side of periandrium bearing an acute process in the middle near dorsal margin.

Remarks.

Male genitalia of N. acutata sp. n. is similar to N. bidentata Zhang & Chen, 2013, but differs in: (1) right side of periandrium near dorsal margin with a short acute process in the middle curved and directed dorsocephally (in N. bidentata , right side without process in the same position); (2) right side of periandrium with a long and broad process strongly curved near apex directed ventrocephally (process on right side of periandrium near apex straight and directed dorsocephally in N. bidentata ); (3) left side of flagellum with a process basally (in N. bidentata , without process in the same position).

Female genitalia of N. acutata sp. n. is similar to N. bidentata Zhang & Chen, 2013, but differs in: (1) posterior vagina elongate, left side with two longitudinal sclerites (in N. bidentata , posterior vagina relatively short, left side with one longitudinal sclerite); (2) each side of posterior vagina with a small sclerite near terminal in ventral view (in N. bidentata , posterior vagina with a wide sclerite medially and a small longitudinal sclerite on the left side near terminal in ventral view).