Microlepidoptera, or micro moths, represent the smaller and often more intricate members of the order Lepidoptera. Like the macrolepidoptera, the term is informal and does not correspond to a single evolutionary lineage, but it remains a useful distinction for practical identification and study. Micro moths are generally characterized by their small size, many species having wingspans of less than 10 millimeters, and by their remarkable diversity in form, behavior, and ecology.