Stenoma vaga is a moth of the Depressariidae family. It is found in the Amazon region. The wingspan is 22-23 mm. The forewings are whitish-ochreous, tinged with brownish and with a blackish dot near the base in the middle, and one beneath the costa at one-fifth. The stigmata are dark fuscous, with the plical obliquely beyond the first discal. There are cloudy dark fuscous dots on the upper margin of the cell before and beyond the first discal stigma. Two series of cloudy brownish dots are sprinkled with dark fuscous, the first from the middle of the costa to the middle of the dorsum, very strongly sinuate-curved outwards around the cell, the second from before four-fifths of the costa to five-sixths of the dorsum, strongly curved outwards in the disc. There is also a marginal series of bla