Pachygonidia subhamata is a moth of the family Sphingidae.

It is found from Brazil, Venezuela and Ecuador north through Central America (Panama, Costa Rica, Nicaragua, Honduras, Guatemala, El Salvador and Belize) to Mexico.

There is a grey-brown submarginal patch on the forewing upperside and two median transverse pinkish-buff bands on the hindwing upperside.

These band are more or less shaded with brown and the pink tint is mostly not prominent.

The larvae feed on Vitis tiliifolia.