Aedeagi (dorsal view) A C. bariorum holotype (Venezuela: Zulia) B C. occidentalis holotype C C. yukparum holotype D–H C. bariorum D specimen from Zulia E specimen from Aragua F specimen from Falcón G specimen from Guárico H specimen from Trujillo. Scale bars: 0.25 mm.

  Part of: Smith RR, Short AEZ (2020) Review of the genus Chasmogenus Sharp, 1882 of northeastern South America with an emphasis on Venezuela, Suriname, and Guyana (Coleoptera, Hydrophilidae, Acidocerinae). ZooKeys 934: 25-79.