Graphium bathycles, the veined jay, is a butterfly in the family Papilionidae, that is found in the Indomalayan realm.

Karl Jordan in Seitz ( pages 99, 100) provides a description differentiating bathycles from nearby taxa.

[1] The first part reads body above black, with ash-grey hairs at the sides of the head and thorax, beneath grey white, abdomen laterally with a grey-white stripe.

Beneath the spots silver-white, at the base of the hindwing often yellowish, the cell-spots of the forewing and the submarginal spots of the hindwing larger than above, on the hindwing the brownish black costal margin of the cell is prolonged to the costal margin in the form of a narrow, curved band, inside this band before the costal mostly a yellow spot, in addition a row of yellow spots on the disc from the apex of the cell to the anal angle.

No yellowish wool in the scent-fold of the g. The female similar to the male.