Dasychira vagans, the Variable Tussock Moth, is a moth of the Lymantriidae family. It is found in North America, where it has been recorded from Newfoundland to southern British Columbia in the north and North Carolina and Utah in the west. The habitat consists of forests, including coastal rainforests, high elevation mixed hardwood-conifer forests, oak woodlands and mixed hardwood forests. The larvae feed on a wide range of plants from Aceraceae, Betulaceae, Fagaceae, Salicaceae and Rosaceae, but favors Quercus species.