FIGURE 37 in The Weevil Rostrum (Coleoptera: Curculionoidea): Internal Structure And Evolutionary Trends

FIGURE 37. Semithin sections of head of Listronotus sp. (Curculionidae: Cyclominae). 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 antennal insertion and proximal area of mouth-