FIGURES 1–3 in Larval morphology of the Neotropical diving beetle genus Hemibidessus Zimmermann, 1921 (Coleoptera: Dytiscidae: Bidessini)

FIGURES 1–3. Hemibidessus conicus (Zimmermann, 1921): (1) habitus of adult, dorsal aspect; (2) habitus of instar III larva, dorsal aspect; (3) head of instar III larva emphasizing nasale (arrow), dorsal aspect (mandibles seen by transparency). Scale bars = 1 mm for Figs 1–2 and 0.3 mm for Fig. 3.