MORPHOLOGY

External characteristics

Male
Forewing length (mm): 37-40. Wingspan (mm): 58-59.
Forewings: Upperside black, pale bluish/greenish spots as follows: complete series of small but conspicuous submarginal spots, series of median spots from hind margin to near apex, lower spots largest and more or less confluent, filling 1/4 to 1/3 of width of wing near hind margin, narrow linear spots in cell and at end cell, basal-most one not continued to hind margin; underside similar, but spots in cell larger and basal-most forming a bar to hind margin Hindwings Crenulate, no tail; upperside black with well developed submarginal spots, large central pale greenish band from costa to just before tornus, widest at costa, varying there from 1/3 of length costa, separate pale greenish triangular spot at costa between wing base and broad band; underside dark brown, as upperside but submarginal spots larger and with some irregular red median spots, no red spot on vein 8.

Female
Similar to male, but dark brown rather than black.

Subspecies and variation

There is some variation in the width and intensity of the color of the pale areas; seven subspecies are recognized, six of which are found in the Malaysian area.

Similar species

See under G. doson.

_{source: Jan Moonen, peronal communication 2020}