Thorax, abdomen and genitalia of Ephydrolithus spp.: A–D Ephydrolithus hamadae: A ventral view of mesoventrite (white arrow pointing transverse ridge) B posterior view of metafurca C fifth abdominal ventrite D aedeagus E aedeagus of Ephydrolithus teli. F, G Ephydrolithus spiculatus: F aedeagus G oblique view of mesoventrite (black arrow pointing well-developed tooth) H aedeagus of Ephydrolithus ogmos I aedeagus of Ephydrolithus minor. Scale bars: 0.25 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