Spodoptera frugiperda (J. E. Smith), a species of moth known also as fall armyworm. It derives its name for its ability to devour entire crops, moving from food source to food source collectively like an army. It is found in tropical environments from the United States to Argentina.
Vega Baja, Puerto Rico
February 20, 1985, 20.II.85, Rice
S.J. Johnson
USNM ENT 00065534