Colorful Insects in the Garden

This is a picture of an orange moth(?) sitting on a pumpkin leaf.

Another picture of the same orange insect perched on a pumpkin leaf.

A large greenish-orange beetle resting on a pumpkin leaf.

A small orange-black fly with iridescent wings parked on the leaf of a cantaloupe plant.
All pictures taken in a garden in Hodgenville, Kentucky.