Anacamptodes pergracilis (Hulst), commonly known as the cypress looper, drew considerable attention in late summer of 1980 with the unexpected defoliation of nearly 28,000 ha of cypress trees in USFS-NPS Big Cypress National Preserve (Collier and Monroe counties). Currently, cypress looper populations are at low levels, even in the Fisheating Creek (Glades County) area, a perennial generator of significant cypress looper defoliation over the past 20 years. This 3-page fact sheet was written by Wayne N. Dixon, and published by the UF Department of Entomology and Nematology, April 2013.
http://edis.ifas.ufl.edu/in986