Flata sinuata, Peng, Ling-Fei, Fletcher, Murray J. & Zhang, Ya-Lin, 2012

Peng, Ling-Fei, Fletcher, Murray J. & Zhang, Ya-Lin, 2012, Review of the Oriental planthopper genus Flata Fabricius (Hemiptera: Fulgoroidea: Flatidae) with the description of five new species, Zootaxa 3399, pp. 1-22 : 12-14

7. Flata sinuata sp. nov.

( Figs. 9 , 10 )

Color. Body green; head and legs faded stramineous; eyes dark brown; tegmina light green with many small round black spots ( Fig. 9 ).

Morphology. Body length: 16 mm.

Head: Head 5 times as wide as long; frons slightly longer than wide; frontoclypeal suture shallowly convex; rostrum extending to meso-trochanter ( Fig. 9 ).

Thorax: Pronotum anterior margin convex; lateral margin extending lateral-ventrally, almost articulated with postocular eminence ( Fig. 9 C). Mesonotum posterior angle about 90° ( Fig. 10 A). Metatibia with seven spines apically; basal segment of metatarsi with nine spines. Tegmina with costal margin, apical margin and sutural margin truncate; apical angle about 70°; sutural angle about 100°; vein Cu once forked, the branches joining postclaval margin ( Fig. 9 C).

Male genitalia: Pygofer trapezoid; anterior margin truncate; dorsal margin concave ( Fig. 10 D). Genital style hemispherical with a short process at dorsocaudal third; ventral margin rounded ( Fig. 10 D). Anal tube in lateral view slender and long, sinuate at apex, bent down at midlength ( Fig. 10 D). Phallobase tubular at base; dorsolateral lobe slender; apex with two processes on each side, inner one short and finger-like, outer one longer than inner one ( Figs. 10 F, G); lateral emargination deeply concave ( Fig. 10 G); ventral lobe long, with one median process and two lateral processes ( Figs. 10 E, G). Theca with one small forked process at middle on each lateral side ( Fig. 10 H); apex bipartite, median concave ( Fig. 10 I), each side with two processes, anterior one as long as phallus and heavily branched, posterior one simple and circled ( Figs. 10 I, H).

Type material. Holotype, 3, Mengyang, Yunnan Province, China, 08.vi.1991, Wang Yinglun & Cai Wangzhi ( NWAFU); paratypes, CHINA, Yunnan Province: 1Ƥ, Menglong, Xishuangbanna, 650 m, 7.iv.1958, Cheng Hanhua ( NWAFU); 1Ƥ, Mengyang, 10.v.1991, Wang Yinglun & Cai Wangzhi ( NWAFU); 1Ƥ, Mengyang, 26.v.1991, Wang Yinglun & Cai Wangzhi ( NWAFU).

Etymology. The specific name is derived from the English word “sinuate”, referring to the apical portion of the costal margin of the tegmen.

Distribution. China (Yunnan).

Remarks. This new species differs from other similar species of the genus by the anal tube of male genitalia being sinuate at the apex and the ventral lobe of the phallobase being elongated in lateral view, with a process as long as the ventral lobe ( Figs. 10 G, E).

Figures

FIGURE 9. Flata sinuata sp. nov.; A. head and thorax, dorsal view; B. face; C. head and thorax, left lateral view; D. tegmen.

FIGURE 10. Flata sinuata sp. nov.; A. head and thorax, dorsal view; B. face; C. head and thorax, left lateral view; D. male genitalia, left lateral view; E. ventral lobe of phallobase, ventral view; F. phallobase, dorsal view; G. phallobase, left lateral view; H. theca, left lateral view; I. theca, dorsal view. (a: dorsolateral lobe of phallobase; b: inner process of phallobase; c: outer process of phallobase; d: lateral emargination of phallobase; e: ventral lobe; f: process of thecal flank; g: anterior process of theca; h: posterior process of theca)