Graphium glycerion, the spectacle swordtail, is a species of butterfly found in the Indomalayan realm (northern India, China, Thailand, Laos and northern Vietnam).
The species was first described by George Robert Gray in 1831.
It may be a synonym of Graphium mandarinus Collins & Morris.
[4] It is however treated as a "good species" by Koiwaya.
[5] A further problem is that the name glycerion is permanently invalid as a junior primary homonym of Papilio glycerion Borkhausen, 1788.