Fig. 18 in Larval morphology of the Japanese species of the tribes Acidocerini, Hydrobiusini and Hydrophilini (Coleoptera: Hydrophilidae)

Fig. 18. Enochrus (Holcophilydrus) simulans (Sharp, 1873), chaetotaxy of head capsule, dorsal view. A–C – second instar larva. A – median part of head capsule; B–C – intraspecific variation of secondary sensilla between PA6 and PA7. D–F – third instar larva. D – median part of head capsule; E–F – intraspecific variation of secondary sensilla between PA6 and PA7. Secondary sensilla are marked by a black rhombus.