Appearance
Male has the upperside dark purple brown, with blackish outer margins and indistinct discal transverse band of spots; forewing with two small translucent white spots on the costa near the apex. Underside dark purple brown.Female has the upper and underside greyish purple brown, transverse band of spots and outer border dark purple brown; forewing with three small semi-diaphanous white subapical spots, the lowest transversely narrow, two spots also at end of the cell, the upper one very slender, and two spots on the disc, each series being bordered by the dark band; hindwing with a semi-diaphanous spot at end of the cell.
Naming
Two subspecies are classified under ''Tapena thwaitesi'', they are:⤷ ''T. t. bornea'' Evans, 1941 - southern Vietnam, Thailand, Langkawi, Malay Peninsula, Borneo, Sumatra, Palawan
⤷ ''T. t. minuscula'' Elwes & Edwards, 1897 - Myanmar, Thailand, Laos
References:
Some text fragments are auto parsed from Wikipedia.
