Byblia ilithyia

Forewing: black markings as on the upperside, but the cell and upper discal markings obscurely margined on the inner side by white; an oblique black line from costa to apex of post-discal transverse band, followed by an oblique pre-apical series of diffuse white spots, the terminal black band as on the upperside but traversed by a broken white line.

Antennae black; head, thorax and abdomen dark dusky fulvous red; beneath, palpi white, head, thorax and abdomen dark ochraceous, variegated with some black and white lines and spots.

On the forewing the black markings comparatively narrower, less well-defined; on the hindwing the white on the bands and spots replaced by pale yellow.

[4][5] Males and females are similar to the wet-season form but the black markings are not so sharply defined.

Underside: ground colour darker, on the hindwing a dark ochraceous; the transverse subbasal and discal bands in both sexes white.

Mating pair at Singanallur Lake, Coimbatore , Tamil Nadu , India
Caterpillar of the spotted joker