Microcolona pycnitis is a moth in the family Elachistidae.

The forewings are fuscous with large tufts above the dorsum at one-fourth and the middle of the wing, edged with whitish-ochreous or whitish.

The discal stigmata is blackish edged with whitish-ochreous or whitish.

There is an elongate dark fuscous mark on the costa at two-thirds, edged laterally with whitish-ochreous or whitish.

There are three costal and one terminal cloudy dark fuscous dots towards the apex, partially pale-edged.