Pest Management Fact Sheet #5028 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/. Introduction The lesser mealworm, Alphitobius diaperinus, may be found in any area where there is damp or moldy manure,