Pest Management Fact Sheet #5044 James F. Dill, Pest Management Specialist Clay A. Kirby, Insect Diagnostician For information about UMaine Extension programs and resources, visit extension.umaine.edu. Find more of our publications and books at extension.umaine.edu/publications/. Description & Biology The mealworm larva is yellowish to brown with a smooth, shiny, worm-like body. It is about