Larvae and pupae of two Neotropical choreutids, Rhobonda gaurisana Walker and Zodia scintillana (Walker) (Lepidoptera: Choreutidae), are described. Photographs, drawings, and scanning electron micrographs are provided for both species, and observations on larval behavior and biology are reported. The larval head in both genera is reinterpreted as being semiprognathous. The D2 setae on A9 arise from a common middorsal pinaculum in Rhobonda, Zodia, and other choreutid genera. Previously, this character was regarded as one of the defining characters for the Tortricidae. The implications of its presence in choreutids are discussed. The variability of the arrangement of pupal dorsal spines between the Millieriinae and the other two subfamilies Brenthiinae and Choreutinae is so great that the inclusion of the Millieriinae with the Choreutidae is questioned.