The Cis tricornis species-group is restricted to the American continent and has five described species, one Nearctic and four Neotropical. Here we describe two new Neotropical species of the group: Cis caipora Borlini & Lopes-Andrade sp. nov. (Costa Rica); and Cis guarani Borlini & Lopes-Andrade sp. nov. (South and Southeast regions of Brazil).