This is the third in a series of four papers that will treat the 55 species and one incertae sedis in the genus Cladonota Stål. The genus Cladonota contains four subgenera: Falculifera McKamey, Cladonota Stål, Lecythifera Fowler, and Lobocladisca Stål. This paper treats the 20 species of the subgenus Lecythifera Fowler, which includes: C. affinis (Fowler); C. bulbosa Flynn; C. championi (Fowler); C. costaricensis Flynn, new species;C. costata (Buckton); C. falleni (Stål); C. globonegra Flynn, new species;C. gonzaloi (Peláez); C. grisea Flynn, new species;C. hoffmanni (Peláez); C. inflata (Fowler); C. locomotiva (Breddin); C. machinula (Breddin) [= Hypsoprora maculata Fonesca and Diringshofen, new synonym]; C. meteorus Arnaud; C. orellana Flynn, new species;C. pieltaini (Peláez); C. plummeri (Peláez); C. robustula (Fowler); C. siparuna (Strümpel) and C. yucatanensis Flynn. Keys to species of the subgenus and illustrations and diagnoses are given for each species treated.