Trepsichrois linnaei Euploea mulciber, the striped blue crow, is a butterfly found in India and Southeast Asia that belongs to the crows and tigers, that is, the danaid group of the brush-footed butterflies family.Hindwing ovate.

Hindwing uniform, unmarked except for a large patch of light-brown, densely set hair-like scales on the outer upper third of the wing.

The female is a lighter brown, the forewing only glossed with blue on the disc; spots white, and more or less similar to those on the forewing of the male, but larger and pure white; in addition a streak in cell and another curved streak in interspace 1 showing through faintly from the underside.

Underside similar to the upperside in each, but the markings broader, larger and more distinct; in the male there are besides a small white spot in apex of cell, two or three discal and incomplete sub-terminal and terminal series of white dots.

"Short, thick across the middle; thorax concave behind; abdominal segments dorsally convex, metallic golden-brown with darker brown anterior stripe."