Head and internal structures of Aulonochares spp.: A–E Aulonochares tubulus: A head, dorsal view B ventral view of mesoventrite with simply convex posterior elevation C posterior view of metafurca D fifth abdominal ventrite E aedeagus. F, G Aulonochares novoairensis: F head, dorsal view G aedeagus. H, I Aulonochares lingulatus: H head, dorsal view I aedeagus. Scale bars: 0.5 mm.

 
 
  Part of: Girón JC, Short AEZ (2019) Three additional new genera of acidocerine water scavenger beetles from the Guiana and Brazilian Shield regions of South America (Coleoptera, Hydrophilidae, Acidocerinae). ZooKeys 855: 109-154. https://doi.org/10.3897/zookeys.855.33013