The grub-like females have legs but do not have wings and are yellowish or light brown, except for some dark brown back plates.
The host plants are from the groups: Poaceae, birch, willow, poplar and Vaccinium.
The caterpillars make a protective hull from grass.
Originally from the Old World, they have been introduced in North America.
This article relating to the superfamily Tineoidea is a stub.