Fig. 43 in Larval morphology of the Japanese species of the tribes Acidocerini, Hydrobiusini and Hydrophilini (Coleoptera: Hydrophilidae)

Fig. 43.Helochares (Hydrobaticus) nipponicus Hebauer, 1995, chaetotaxy of head capsule, dorsal view.A–B – second instar larva:A – median part of head capsule; B – intraspecific variation of secondary sensilla between PA6 and PA7. C–D – third instar larva: C – median part of head capsule; D – intraspecific variation of secondary sensilla between PA6 and PA7. Secondary sensilla are marked by a black rhombus.