FIGURE 27 in The Weevil Rostrum (Coleoptera: Curculionoidea): Internal Structure And Evolutionary Trends

FIGURE 27. Semithin sections of head of Nanophyes sp. (Brentidae: Nanophyinae). A, ventral aspect of head; B, lateral aspect of head; C–G, cross sections proceeding from apex of rostrum toward base; C, section at apex of head through mouthparts; D, section through proximal area of mouthparts; E, section posterior to mouthparts, anterior to antennal insertion; F, section posterior to middle of rostrum and to antennal insertion; G, diagram of F.