1–2 Bidessonotus obtusatus male. 1 Left protarsomeres, dorsal aspect 2 Left mesoleg, anterior aspect 3 B. tibialis male, habitus, lateral aspect 4 B. rubellus, male median lobe, right lateral aspect showing regions referenced in diagnoses and descriptions.

 
 
  Part of: Miller KB (2016) New species of Bidessonotus Régimbart, 1895 with a review of the South American species (Coleoptera, Adephaga, Dytiscidae, Hydroporinae, Bidessini). ZooKeys 622: 95-127. https://doi.org/10.3897/zookeys.622.9155