Matapa aria, the common redeye, is a species of butterfly belonging to the family Hesperiidae. It is found in India and Southeast Asia.
Male and female chocolate brown.
Male. Upperside, pale brown; forewing with a short impressed comma-like grey streak obliquely beneath the cell. Cilia yellowish white. Underside bright ferruginous brown. Palpi ferruginous brown.
Female. Upperside dark chocolate brown without the impressed streak; cilia of hindwing pale orange yellow. Underside bright ferruginous brown.
The larvae feed on Bambusa striata, Ochlandra travancorica and Ochlandra scriptoria.