Rothschildia jacobaeae (commonly known as the Brazilian silk moth) is a moth of the family Saturniidae first described by Francis Walker in 1855. It is endemic to Argentina and Brazil.
The wingspan is 80âÂÂ100 mm.
The larvae feed on plants of several families, including species of Ilex paraguariensis, Jacaranda caroba, Jacaranda mimosifolia, Ligustrum spp., Ligustrum ovalifolium, Cephalanthus glabratus.