Figure 1 in REVIEW Going underwater: multiple origins and functional morphology of piercing-sucking feeding and tracheal system adaptations in water scavenger beetle larvae (Coleoptera: Hydrophiloidea)

Figure 1. Head capsule of larvae with chewing (A–C) and piercing-sucking (D–I) feeding system, SEM micrograph, dorsal view. A, Hydrophilus (Dibolocelus) palpalis Brullé, 1837, second-instar larva. B, Tropisternus setiger Germar, 1824, firstinstar larva. C, Derallus paranensis Oliva, 1981, first instar larva. D, Berosus sp., third-instar larva. E, Hemiosus bruchi Knisch, 1924, third-instar larva. F, Oocyclus iguazu (Oliva 1996), third-instar larva. G, Laccobius kunashiricus Shatrovskiy, 1984, third-instar larva. H, Hybogralius hartmeyeri (Régimbart, 1908), third-instar larva, light microscope photograph. I, Epimetopus mendeli Fikáček et al. 2011, first-instar larva.