Yunga coriacea (Stål, 1864)

Sauceda-V, Jefferson & Takiya, Daniela M., 2023, On the sharpshooter genus Yunga Melichar, 1924 (Hemiptera: Cicadellidae: Cicadellinae): descriptions of a new species from Panama and of the internal female terminalia of Y. cartwrighti Young, 1968 and Y. coriacea Stål, 1864, Zootaxa 5389 (4), pp. 434-444 : 441

Yunga coriacea (Stål, 1864)

( Fig. 2G–H , Fig. 5 )

External morphology. Characters of external morphology as in generic description by Young (1968: 57–59).

Female genitalia. Characters of the female genitalia as in the description of the female of Y. cartwrighti above, except for: Abdominal sternite VII ( Fig. 5A ) approximately 1.2 times wider than long; lateral margins parallel, without lobes; posterior margin with lateral corners slightly angulate, paired V-shaped concavities near median projection, median triangular projection prominent with rounded apex. First valvifer ( Fig. 5C ), in lateral view, almost oval with dorsal margin with shallow concavity. First valvula ( Fig. 5C–D ), in lateral view, with apex acute. Second valvula ( Fig. 5 E–F ), in lateral view, distinctly expanded beyond basal curvature with basal third distinctly higher and narrowing in height towards apex; dorsal margin with 52 separated teeth, each triangular at basal half and subquadrate at apical half; preapical prominence not distinct; apex acute, with ventral margin smooth ( Fig. 5E–F ).

Remarks. Here, we provide for the first time a specific locality record of this species in Mexico. In general, features of the female genitalia of this species are very similar to those of Y. cartwrighti , however, they can be easily distinguished by the shape of the posterior margin of the sternite VII and shape of the second valvula of the ovipositor, thus carrying taxonomic information that may be of importance for future studies in different areas using comparative morphology.

Examined material. MEXICO: 1 female “El Fortin\ Veracruz, MEX\ vii:9:41”; “Col by\ H. Dybas ”; “Fld Mus” ( FMNH) .

Figures

FIGURE 2. Dorsal and lateral habitus of Yunga species. A–B) Y. andresi sp. nov., male holotype (UNL). C–D) Y. andresi sp. nov., specimen from Chiriqui Province (Panama). E–F) Y. cartwrighti, female from Panama Province (Panama). G–H) Y. coriacea, female from Veracruz State (Mexico). Scale bar = 2 mm.

FIGURE 5. Female genitalia of Yunga coriacea. A) Abdominal sternite VII, ventral view. B) Pygofer and anal tube, lateral view. C) First valvifer and first valvula, lateral view. D) Detail of first valvula apex, lateral view. E) Second valvifer and valvula, lateral view. F) Detail of second valvula, lateral view. G) Third valvula, lateral view. Scale bar = 0.5 mm.