Brenthia salaconia is a species of moth of the family Choreutidae.

The forewings are dark fuscous with an irregular straight whitish transverse streak before one-third and a transverse-oval discal spot outlined with white, surrounding which is an irregular whitish ring almost or quite touching the costa and dorsum.

There is also a moderately broad blackish terminal fascia, edged anteriorly with whitish and preceded by a parallel whitish line, the upper extremity cut off so as to form two small spots, marked near the posterior edge with five violet-golden-metallic dots, of which two are in the two upper spots, and the upper spot also preceded by a small golden-violet spot.

The hindwings are dark fuscous with a small obscure whitish spot in the middle of the disc and there is a transverse shining violet mark before the apex.

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