On the upperside in the male two points of difference are—the short oblique portion of the postdiscal band on the forewing near the costal margin is narrower than in C. marmax, and the broad black terminal band on forewing which in C. marmax terminates at vein 1, in kahruba extends to the dorsal margin.
On the upperside of male wings, two distinctions are noted—the short oblique part of the postdiscal band near the costal margin is narrower than in C. marmax, and the broad black terminal band on the forewing that ends at vein 1 in C. marmax extends to the dorsal margin in kahruba.