FIGURE 46 in The Weevil Rostrum (Coleoptera: Curculionoidea): Internal Structure And Evolutionary Trends

FIGURE 46. Semithin sections of head of Tyloderma variegatum (Curculionidae: Cryptorhynchinae). A, ventral aspect of head; B, lateral aspect of head; C–H, cross sections proceeding from apex of rostrum toward base; C, section at apex of rostrum through mouthparts; D, section immediately posterior to mouthparts at