Cryptic Species of the Anastrepha fraterculus Complex (Diptera: Tephritidae): a multivariate approach for the recognition of South American morphotypes - Hernández-Ortiz, Vicente; Bartolucci, Andrea F; Morales-Valles, Pedro; Frías, Daniel; Selivon, Denise (Annals of the Entomological Society of America, 2012)