These pale yellow insects are about 1/25 inch long and with short legs and antennae. The species in houses usually do not have wings and remain hidden in damp secluded areas.

(Liposcellis sp.) These small insects develop from egg to adult in about 65 days. Reproduction occurs throughout the year, the adults live about 3 months. They feed on microscopic fungi and molds in damp locations, starchy past of books and wallpaper, they are sometimes found in cereal.