Larvae and adult of Demarchus hsui sp. nov. A young larva (indicated by arrow) mining leaf B larval tunnels and feeding marks made by adults on leaf (indicated by arrows) C diagrammatic illustration of larval tunnels for Fig. 9B D older larva starting to mine leaf E mature larva that emerged from larval tunnel F adult feeding on leaf.

 
 
  Part of: Lee C-F, Chen J-C (2023) Demarchus hsui (Coleoptera, Chrysomelidae, Galerucinae, Alticini), a new species from Taiwan, with notes on immatures and biology. In: Chaboo CS, Schmitt M (Eds) Research on Chrysomelidae 9. ZooKeys 1177: 3-21. https://doi.org/10.3897/zookeys.1177.97854