ABSTRACT
Cluster flies, Pollenia rudis, originated in Europe and likely reached North America in ballast material or transported plants with soil containing earthworms, on which the fly larvae feed. Clothes moths, Tineola bisselliella, belong to the order Lepidoptera. Clothes moths were native to Eurasia but have been transported worldwide with human clothing and food products. The caterpillars feed on natural fibers, especially wool, as well as wheat flour and other stored grains. A variety of incidental, stray “bugs” are attracted to light, warmth, moisture or sources of food and may enter homes through cracks, crevices or open doors or windows. Humans also are attacked outdoors by a variety of flies that are primarily nuisances but can cause painful bites. Horse flies and deer flies, black flies and no-see-ums or punkies generally occur near aquatic habitats, especially marshes, streams and coastal areas.
