Almost all the type specimens of Cacotherapia Dyar (Pyralidae: Galleriinae) are located at The National Museum of Natural History, Smithsonian Institution, Washington, DC (USNM). The type specimens and their labels were photographed, and original descriptions were reviewed to investigate the status of primary type specimens. The locality of the type species, C. nigrocinereella Hulst, is confirmed to be Utah, and not Texas as in the original description. Lectotypes are designated for C. angulalis (Barnes and McDunnough, 1918), C. flexilinealis Dyar, 1905, C. poecilostigma (Dyar, 1914), C. ponda Dyar, 1907, and C. unipuncta (Dyar, 1913) to fix and stabilize the scientific name for these species.