Apatelodes castanea is a moth in the Bombycidae family. It is found in Brazil (Parana). The wingspan is about 40 mm. The forewings are chestnut-brown with conspicuous dark slightly excurved ante- and post-medial lines. There is a minute white spot near the apex and a minute dark point on the discocellulars. The hindwings are chestnut-brown, but ochreous at the base.