The federally endangered hemiparasite, Schwalbea americana L. (Scrophulariaceae), is a fire-dependent species primarily associated with the southeastern Coastal Plain (United States Fish and Wildlife Service 1992, 1995). Historically, S. americana ranged from New York to Texas (Pennell 1935), but due to fire suppression and habitat fragmentation, it has been reduced to a fraction of its original range (United States Fish and Wildlife Service 1992, 1995). Knowledge of the species biology of S. americana is limited. While conducting a study to isolate potential factors controlling the fire induced flowering response of S. americana (Norden 2002, Norden and Kirkman in press), we observed severe insect herbivory in one particular treatment across three of our study sites.