Figures 16–18. 

First-instar larva of Cybister (Cybister) lewisianus 16, 17 abdominal segment VIII 18 urogomphus 16 dorsal aspect 17, 18 ventral aspect.

  
  Part of: Watanabe K, Hayashi M (2024) Description of the larva of Cybister lewisianus Sharp, 1873 (Coleoptera, Dytiscidae, Cybistrinae). ZooKeys 1197: 137-152. https://doi.org/10.3897/zookeys.1197.119508