Oniella Matsumura

Min, Gao & Zhang, Yalin, 2013, Review of the leafhopper genus Oniella Matsumura (Hemiptera: Cicadellidae), with description of a new species from China, Zootaxa 3693 (1) : -

Oniella Matsumura

Oniella Matsumura, 1912: 46

Type species: Oniella leucocephala Matsumura 1912 , by original designation.

Description. Head slightly produced angularly, crown nearly flat or slightly convex, entire anterior and lateral margins separated from face by distinct carina; coronal suture present; eyes fairly large, lateral margins in front of eyes straight and triangularly produced anteriorly; ocelli small, submarginal, some distance in front of inner margin of eyes (Figs. 1–10). Face slightly convex with median longitudinal carina anterodorsally; anteclypeus shagreen and wide basally, median carina extended from dorsal margin to apex of median gibbosity, tapered in distal twothirds, apex truncate, even with genal margin; lorum small and narrow, well-separated from lateral margin of gena (Figs. 16–20). Pronotum shorter than crown or equal in length; slightly wider than head, anterior margin roundly produced, posterior margin slightly concave, sides carinate. Scutellum almost as long as head, transverse depression distinct, nearly reaching lateral margin (Figs. 11–15). Forewings with venation obscure; four apical cells; appendix very narrow; hind wing with venation complete (Figs. 6–10). Front femur with setae AM1 and AV1 enlarged; intercalary row with 9 setae with more distal setae progressively larger; row AV with 4 enlarged basal setae and ca. 6 shorter setae more distad; PV setae absent. Hind femur macrosetal formula 2+1+1; tibia with ca. 18, 12, 14, and 30 setae in rows AD, PD, PV, and AV, respectively.

Male genitalia: Pygofer lobe well-developed, with several macrosetae at posterior margin, and with process at ventral margin. Subgenital plate long and bladelike; ventral side with longitudinal row of large setae. Style with apical process elongate, curved laterally; lateral lobe well developed with group of small setae. Connective Yshaped. Aedeagal shaft in lateral view curved dorsad and asymmetrical, with well-developed appendages.

Female genitalia: Female sternite VII oblong, produced medially at the posterior margin which with a small notch at the apex ( Fig. 27 ); first valvula in lateral view ( Figs. 21, 24 ) broadened from base to ca. 1/4 distance from apex, apical sixth tapered, with oblique concatenate sculpturing basally, transitioning to strigate sculpturing and extended from dorsal to ventral margins distally, ventral preapical sculpturing imbricate; second valvula ( Figs. 22, 25 ) with toothed distal blade broadened, less than one fourth total length of valvula, with sparse, conical teeth preapically; third valvula ( Figs. 23, 26 ) with 17–19 stout ventral submarginal setae preapically.

Diagnosis. Externally similar to Chudania Distant, 1908 in body form and similar to Sophonia Walker, 1870 in wing venation; pygofer ventral appendage and style mostly resembling those of Sophonia Walker , but color pattern of scutellum much darker and subgenital plate longer and narrower, aedeagal shaft in lateral view curved and asymmetrical, shape of pygofer process intraspecifically more various; sexual dimorphism obvious, with male and female differing in body length and coloration ( Figs. 28–32 ).

Figures

FIGURES 21 – 27. female ovipositor of Oniella honesta Melichar: 21, first valvulae, lateral view; 22, second valvula, lateral view; 23, second valvifer and third valvula, lateral view; 24, apical half of first valvulae, lateral view; 25, apex of second valvula, lateral view; 26, apex of third valvula, lateral view; 27, female sternite VII.

FIGURES 28 – 32. 28 – 30, Oniella honesta Melichar; 31 – 32,. Oniella shaanxiana sp. nov.: 28, 31 male habitus, dorsal view; 30, 32, 33 female habitus, dorsal view.