Astacosia lineata is a species of moth in the subfamily Arctiinae of the family Erebidae. It was described by Hervé de Toulgoët in 1965.
The species is endemic to Madagascar.
Astacosia lineata is recorded from Madagascar, where it appears to be restricted to the islandâÂÂs endemic fauna.
The species was first described in 1965 by the French entomologist Hervé de Toulgoët.