Bucculatrix leptalea is a moth in the family Bucculatricidae. It was described by Annette Frances Braun in 1953. It is found in North America, where it has been recorded from Michigan, Manitoba, Washington and California.
The larvae feed on Artemisia dracunculus.The genus Bucculatrix in America north of Mexico (Microlepidoptera)
References
Natural History Museum Lepidoptera generic names catalog