Tecia solanivora Povolny (Lepidoptera: Gelechiidae) is a key pest of potato (Solanum tuberosum L.) tubers that recently invaded some cultivation areas in South America and the Canary Islands, with disastrous effects on the potato industry in these areas. The putative area of origin of T. solanivora is Guatemala, whence its common name (Guatemalan potato moth) is derived, probably ranging from the Isthmus of Tehuantepec in Mexico to Northern Honduras and El Salvador (Puillandre et al., 2008). It was first described in 1973 and