Arctornis submarginata is a species of moth of the subfamily Lymantriinae of family Erebidae.

It is found in the north-eastern Himalaya and Sikkim, Sri Lanka,[1] on Borneo and Sumatra[2] and in northern Australia.

The wing membrane is slightly corrugated on outer area.

[4] Larva pale fuscous with simple long scattered spatulate hairs.

There is a dorsal tuft of long black hairs from the second somite.