The Gracillariidae is one the largest families of primitive moths (Lepidoptera). Gracillariid moths are generally distributed throughout the world except Antarctica, and they are more numerous in tropical areas. Many species of Gracillariidae are serious pests of agricultural and ornamental plants. The Global Taxonomic Database of Gracillariidae currently holds information on 147 genus-group names and in total 2.683 species-group names, belonging to 105 genera.