Seseria sambara, also known as the Sikkim white flat is a butterfly in the family Hesperiidae. It is found from Sikkim in India to Vietnam. It was described by Frederic Moore in 1866.
The upperside is dark maroon-brown. The upperside forewing has seven semi-transparent white spots. The upperside hindwing has a broad whitish band. The underside is as the upperside, but paler. The forelegs are black, while the hindlegs are white.
There are two recognized subspecies -