Dysphania palmyra, the long blue tiger moth[1] or blue day moth, is a moth of the family Geometridae.

The species was first described by Caspar Stoll in 1790.

[2] It is found in India and Sri Lanka.

[3][4] The caterpillar is known to feed on Carallia brachiata and Camellia sinensis.

[5] Colouration is very similar to Dysphania percota.