FIGURES 1–12. 1–4 in The genus Buenoa Kirkaldy, 1904 (Hemiptera: Heteroptera: Nepomorpha: Notonectidae) in northern Brazil: inventory, new records, and new species

FIGURES 1–12. 1–4. Buenoa sp. 1, Ventral view of head with frons narrow; 2, Ventral view of head with frons wide; 3, Lateral view of rostrum with measures used; 4, Ventral view of male fore femur with measures used. flt, femur length; fwd, femur width; lbm, labrum; rpl, rostral prong length; tls, tylus; trl, third rostral segment length; trs, third rostral segment. 5–6. Buenoa communis Truxal. 5, Lateral view of male rostrum with rostral prong slightly longer than third rostral segment; 6, Ventral view of male fore leg with stridulatory area on fore femur and dissimilar stridulatory teeth on tibia. 7–12. Buenoa deplanatylus sp. nov. 7, Lateral view of male rostrum with rostral prong shorter than third rostral segment; 8, Ventral view of male fore leg without stridulatory area on femur, internal margin of tibia bluntly projected, and with dissimilar stridulatory teeth; 9, Dorsal view of fore tibia with apex bluntly projected; 10, external margin of mid-tibia with dilatation at median region; 11, Ventral view of hind femur sinuous with a line of short spines; 12, Claspers.