Trichoplusia ni . Frequently called the measuring worm. It causes damage similar to that of the imported cabbage worm. Feeding from the underside, it causes ragged holes in leaves and deposits dark pellets of excrement. Attacks leaves of many plants, including all members of the cabbage family, lettuce, cotton, tobacco, soybeans, tomatoes, and several annual flowering plants.
Loopers are pale green with a light stripe along each side of the body.