Yunga cartwrighti Young, 1968

(Fig. 2E–F, Fig. 4)

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

Female genitalia. Abdominal sternite VII (Fig. 4A), in ventral view, subrectangular, approximately 1.5 times wider than long; lateral margins slightly convergent posteriorly and sinuous, with a submedian lobe; ventral surface uniformly setose, except at base; posterior margin with rounded lateral corners and prominent narrow median projection with rounded apex. Sternite VIII completely membranous. Pygofer (Fig. 4B), in lateral view, produced posteriorly and directed a little upwards; apex almost truncate; surface with longer microsetae along central, ventral, and posterior regions, and shorter microsetae uniformly distributed over all surface, except near base. First valvifer (Fig. 4C), in lateral view, almost rounded. First valvula (Fig. 4C–D) with dorsal sculptured area strigate on almost all dorsal surface, strigae arranged horizontally at basal third and becoming oblique towards apex; ventral sculptured area strigate, but faintly marked at apical two-thirds; apex rounded. Second valvifer (Fig. 4E), in lateral view, longer than wide. Second valvula (Fig. 4E–F), in lateral view, distinctly expanded beyond basal curvature with almost the same height throughout; dorsal margin with 52 separated teeth, each subtriangular, becoming gradually smaller and subquadrate towards apex; preapical prominence not distinct; apex narrowly rounded, with ventral margin smooth. Third valvula (Fig. 4G), in lateral view, with basal half narrow and apical half distinctly expanded, apex broadly rounded.

Notes. This is the first time that data of specific localities are provided for this species in Panama.

Examined material. PANAMA: 1 male “Barro Colorado\ Gatun Lake Pan\ R.C. Shannon \ july 1923 ”; “9:1859A” (USNM). 1 female “ Panamá: Panamá Prov.\ Cerro Campana, 850m \ 8º 40’ N, 79º 56’ W / 14 july 74 Stockwell ” (NCSU).