Canna leaf roller refers to two different Lepidoptera species that are pests of cultivated cannas. Caterpillars of the Brazilian skipper butterfly (Calpodes ethlius), also known as the larger canna leaf roller, cut the leaves and roll them over to live inside while pupating and eating the leaf.University of Florida, Institute of Food and Agricultural Sciences, Featured Creatures: Larger Canna Leafroller. In addition, caterpillars of the lesser canna leaf roller (Geshna cannalis), a grass moth, will sew the leaves shut before they can unfurl by spinning a silk thread around the leaf.University of Florida, Institute of Food and Agricultural Sciences, Featured Creatures: Lesser Canna Leafroller. The resultant leaf damage can be distressing to a gardener.
References
External links Galveston County Master Gardener Association Butterflies and Moths of North America: Brazilian Skipper