Agriphila vulgivagellus, the vagabond crambus or vagabond sod webworm, is a moth of the family Crambidae.

It is found from Quebec and New England to Florida, west to Texas and north to Alberta.

Adults are on wing from August to October in one generation per year.

The larvae feed on various grasses, as well as wheat, rye and other grains.

This article relating to the moth tribe Crambini is a stub.