Oidaematophorus vafradactylus is a moth of the family Pterophoridae found in Estonia, Finland and Sweden.

The female ostium is positioned in the center of genitalia, and deeply excavated.

The antrum is 1 1/2 mm in length and in width, and is narrowed.

[3] The larvae possibly feed on willowleaf yellowhead (Inula salicina).

This article on a moth of the family Pterophoridae is a stub.