Arotros is a genus of moths of the Bombycidae family. It contains the single species Arotros striata, which is found in Brazil. The wingspan of the Atros striata is approximately 45 mm. The wings are buff with brown veins and striations. The base and half of the costal margin of the forewings are dark grey, as is the head. The collar is brown, with darker margins. The thorax and abdomen are buff--the latter with numerous longitudinal dark streaks.