The Larger Elm Leaf Beetle, Monocesta coryli (Say), an Occasional Pest of Elms in Florida

The larger elm leaf beetle, Monocesta coryli (Say), is one of the most conspicuous members of Florida’s leaf beetle fauna. Although usually uncommonly collected in this state, it occasionally is abundant enough to cause defoliation of both native and exotic elms (Ulmus spp.) in ornamental and natural settings.