FIGURE 29 in The Weevil Rostrum (Coleoptera: Curculionoidea): Internal Structure And Evolutionary Trends

FIGURE 29. Semithin sections of head of Gilbertiola sp. (Curculionidae: Brachycerinae: Raymondionymini). A, ventral aspect of head; B, lateral aspect of head; C–H, cross sections proceeding from apex of rostrum toward base; C–D, sections at apex of rostrum through mouthparts; E, section at proximal area of mouthparts,