Giant African Bullfrog and Horn Worms 

A lot of people comment asking if, or questioning the use of the term "worm". The common name for this species is Tobacco Horn Worm. The latin name is Maduca Sexta. There are a couple of species of the Maduca genus in the U.S. The common names are in relation to the type of plants they are commonly found on, and consist of Tobacco, and Tomato plants. The University of Florida describes them as "common large caterpillars that defoliate tomato plants". So yes, I think caterpillar would be an accurate common usage when describing these creatures.