The snout moths (Pyraloidea) contain over 16,000 described species worldwide (Solis, 1997, Munroe & Solis 1998). The life histories of pyraloid moths are very diverse. Some caterpillars feed on living plant tissue (as stem borers, leaf, root, or seed feeders), while others are predators or live parasitically in the nests of ants, bees, and wasps. Many species specialize in the exploitation of dried or decaying plant or animal substrate, and several are significant pests of important crop species and stored products (Solis 1996).