Naupactus is a genus of beetles in the weevil family Curculionidae, the true weevils. They are known commonly as whitefringed beetles. Many species of the genus are considered pests, both as larvae and as adults. The genus is native to the Americas, where it is distributed from Mexico to Argentina; the highest species diversity is in Brazil. Several species have been introduced to the United States and New Zealand.
Some Naupactus have fully developed wings, while others have rudimentary or absent wings and are flightless. The females have flexible ovipositors with which they deposit eggs in cracks and crevices, in soil, between leaves, and beneath the sepals on fruits. The larvae emerge in the soil or fall into it upon emergence. There they feed on the roots. In citrus, for example, they physically damage the roots but more significant injury occurs when pathogens such as Phytophthora enter through the wounds. The length of the larval stage varies depending on species, temperature, and nutrients available. The adults feed on foliage.
- Naupactus ambiguus
- Naupactus bipes
- Naupactus curtus
- Naupactus godmanni (syn. N. cervinus) – Fuller rose beetle
- Naupactus leucoloma
- Naupactus minor
- Naupactus navicularis
- Naupactus peregrinus
- Naupactus rivulosus
- Naupactus tarsalis
- Naupactus tucumanensis
- Naupactus versatilis
- Naupactus xanthographus
- Dixon, W. N. Whitefringed beetles, Naupactus (= Graphognathus) spp. (Insecta: Coleoptera: Curculionidae). EENY-294. University of Florida IFAS. Published 2003, revised 2008.
- Lanteri, A. A., et al. (2002). Weevils injurious for roots of citrus in São Paulo State, Brazil. Neotropical Entomology 31(4), 561-69.
- Ramos, C. S., et al. (2009). Sequestration of prenylated benzoic acid and chromenes by Naupactus bipes (Coleoptera: Curculionidae) feeding on Piper gaudichaudianum (Piperaceae). Chemoecology 19(2), 73-80.
- Gyeltshen, J. and A. Hodges. Fuller Rose Beetle, Naupactus godmanni (Crotch) (Insecta: Coleoptera: Curculionidae). EENY-375 (IN678). Entomology and Nematology. Florida Cooperative Extension Service. University of Florida IFAS. Published 2006, revised 2012.
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