The term 'Closet Pest' refers to a variety of insects that can be found in closets, such as moths, ants, clothesmoths, and whitemillers. Moths are four-letter insects that can be found in dark, enclosed spaces, such as closets. Moths have five letters and are related to butterflies. Ants are three-letter insects that can also be found in closets, often looking for food. Clothesmoths are eleven-letter insects that feed on fabrics, such as wool, fur, and feathers. Whitemillers are eleven-letter insects that feed on flour, cereal, and other stored food items. All of these insects can be considered closet pests, as they can cause damage to clothing and food stored in closets.