- Common Name : Common Baron
- Scientific Name : Euthalia aconthea (Cramer)
- Family : NYMPHALIDAE
- Wingspan : 55-80mm
- Colour : The male is dark brown with a row of very small white spots on the forewings. The female is pale brown with a prominent white band on the forewings.
- Habit : Always rests with its wings spread flat and in slanting position. It is a habitual alcoholic. Not attracted to any flowers at all; instead, it greatly relishes fallen rotten fruits that are rich in alcohol.
- Larval Host Plants : Anacardium occidentale, Streblus asper, Mangifera indica
- Location : Throughout West Bengal