 Altogether, this subfamily includes about 900 described species, but new ones continue to be discovered.Like many of their relatives in the superfamily Pyraloidea, the caterpillar larvae of many Pyralinae – and in some cases even the adults – have evolved the ability to use unusual foods for nutrition; a few of these can become harmful to humans as pests of stored goods.This subfamily unites generally mid-sized to smallish moths with a more or less cryptic coloration including most often various hues of brownish colors.