Elongationa, Sun & Huang & Zhang, 2017

Sun, Jing, Huang, Weijian & Zhang, Yalin, 2017, Taxonomic studies of two genera, Elongationa gen. nov. and Midoria Kato (Hemiptera: Cicadellidae: Ledrinae), with two new species from China, Zootaxa 4294 (3), pp. 361-370 : 361-362

Elongationa gen. nov.

Type Species: Elongationa hyalina sp. nov., here designated.

Description. Body large, rufous ( Figs. 1, 12 ).

Head narrower than pronotum. Eyes small. Crown triangular, spatulate with apex slightly upturned, longer than width between eyes; coronal suture indistinct, with elevated ochraceous ridge along midline. ( Figs. 1 , 13 ). Anterolateral portions of face without setae. Ocelli near posterior margin of crown, nearer to each other than to corresponding eye ( Figs. 1 , 13 ). Face distinctly longer than wide ( Figs.4 , 16 ); clypeal suture distinct; frontoclypeus narrow, convex apically; anteclypeus broadened medially; genae flat; lora broad; lateral margins between lora/ genae and frontoclypeus distinctly depressed ( Figs. 4 , 16 ); antennae short; antennal ledges not distinct ( Figs. 4 , 16 ). Pronotum quadrangular, anterior margin slightly convex, lateral margins oblique, slightly divergent posteriorly, posterior margin sinuate, humeral lobe extended only slightly laterad of forewing base in dorsal view ( Figs. 1, 2 , 13, 14 ). Proepisternum large and quadrate ( Figs. 4 , 16 ). Scutellum triangular ( Figs. 1, 2 , 13, 14 ). Fore wing extending beyond apex of abdomen, veins reticulate apically, clavus densely punctate ( Figs. 2 , 14 ). Hind wings hyaline, with well defined veins( Figs. 3 , 15 ). Legs short. Fore femur with a few setae. Middle tibia with numerous fine setae. Hind femur with three stout macrosetae at apex. Hind tibiae flattened with five or six stout anterodorsal (AD) setae with spine-like bases; posterodorsal (PD) setae fine; anteroventral (AV) and posteroventral (PV) setae shorter and finer. Metathoracic tarsomere I columnar, more robust than other tarsomeres, as long or slightly longer than remaining tarsomeres combined in ventral view.

Male 8th sternite slightly longer than 7th sternite, posterior margin convex and slightly concave medially ( Fig. 7 ).

Male pygofer long, abruptly narrowing from dorsal margin at midlength; dorsal margin sinuate; ventroposterior margin with dorsally directed process ( Fig. 6, 12 ). Subgenital plates ligulate, fused at base, tapered distally to rounded apex; with numerous short setae on ventral surface and with row of slightly stouter setae near apical margin ( Fig. 10 ). Aedeagal shaft depressed, curved dorsally, with paired processes arising near base ( Figs. 8, 9 ). Style elongate, apex footlike ( Figs. 9 ). Connective T-shaped ( Fig. 9, 11 ).

Female with 1st and 2nd valvulae narrow, curved dorsally; 1st strigate with sculpture apically, 2nd with several small dorsal subapical teeth ( Figs. 17, 18, 19, 20 ).

Distribution. China (Sichuan Province and Hainan Province).

Etymology. The name of this new genus refers to the prolonged head.

Remarks. This new genus is close to the genus Ledropsis White but can be distinguished from the latter by: 1) the shape of head triangulate, not infundibulate ( Figs. 1 , 13 ); 2) head upturned apically ( Figs. 2 , 14 ); 3) pronotum punctate, not tuberculate ( Figs. 1 , 13 ).

Figures

FIGURES 1 – 12. Elongationa hyalina sp. nov. 1 habitus, dorsal view; 2, habitus, lateral view; 3, forewing; 4, face; 5, anal tube and appendages, lateral view; 6, pygofer side, lateral view; 7, male 8 th sternite, ventral view; 8, magnified aedeagus, ventral view; 9, aedeagus, style and connective, later view; 10, subgenital plate, ventral view; 11, connective, dorsal view; 12, magnified process of pygofer, ventral view. Scale bars = 1.0 mm (Figs. 1 - 7, 9 - 12); 0.4 mm (Figs. 8).

FIGURES 13 – 20. Elongationa sp. 13, habitus, dorsal view; 14, habitus, lateral view; 15, forewing; 16, face; 17, female first valvulae; 18, magnified view of apex of first valvulae; 19, female second valvulae; 20, magnified view of apex of female second valvulae. Scale bars = 1.0 mm (Figs. 13 - 16); 0.2 mm (Figs. 18, 20); 0.5 mm (Figs. 17,19).