Aedeagus of Crucisternum spp.: A–B Crucisternum ouboteri: A Guyana B Brownsberg C Crucisternum toboganensis D Crucisternum vanessae E–F Crucisternum xingu: E colln#6 F colln#23 G–H Cuscisternum sinuatus: G colln#23 H BR18-0302-04A I Crucisternum escalera J Crucisternum queneyi. Scale bars: 0.25 mm.

 
 
  Part of: Girón JC, Short AEZ (2018) Three new genera of acidocerine water scavenger beetles from tropical South America (Coleoptera, Hydrophilidae, Acidocerinae). ZooKeys 768: 113-158. https://doi.org/10.3897/zookeys.768.24423