FIGURES 13–16. Hydrocanthus debilis Sharp, 1882, instar I in Description and chaetotaxic analysis of the larval instars of Hydrocanthus debilis Sharp, 1882 (Coleoptera: Noteridae)

FIGURES 13–16. Hydrocanthus debilis Sharp, 1882, instar I: (13) abdominal segment VIII, dorsal aspect; (14) abdominal segment VIII and urogomphi, ventral aspect; (15) urogomphi, dorsal aspect; (16) urogomphi, ventral aspect. Numbers and lowercase letters indicate primary setae and pores respectively. AB, abdominal segment VIII; U, urogomphus. Scale bars = 0.10 mm for Figs 13–14 and 0.04 mm for Figs 15–16.