Frankliniella is the most diversity thrips in the tropics and it presents a high taxonomic complexity. The tritici group defined in this work has been based on the mostly functional characters to define species close to Frankliniella tritici and Frankliniella cubensis. Variations on the ring antennal segment III are clear in some species of cephalica group; more over this modification take place as shape of a truncated cone in species such as Frankliniella Standleyana and Frankliniella pineticola. This contributionis a brief synopsis of the species groups within Frankliniella and a revision of the species of this genus including species from Central America and Mexico.
