Two new species of Caldwelliola- are described, C. sinuata from Honduras and C trilineata, from Ecuador, bringing the current total valid species in the genus to eleven. A key to males of all-species is presented. The species C bipunctata Nielson and Godoy, 1995, is placed in-synonymy under C lutea Signoret, 1855, n. syn. One species, C caucana, Young' has been implicated- as a likely vector of the bacterium Xylella fastidiosa Wells, which causes the "crespera" disease, coffee leaf scorch, in Colombia and elsewhere, in the Neotropical Region.