Mompha locupletella is a moth in the family Momphidae that can be found in the Palearctic including Europe.

The forewings are orange, sometimes suffused with purple-brown; a black basal blotch, extended on costa, where it is preceded and followed by leaden-metallic spots, posterior often connected with a leaden-metallic black edged spot beyond it on dorsum; a wedge-shaped mark along middle of costa, and an oblique mark from dorsum before tornus leaden-metallic, black-edged; a blackish apical patch, preceded by a whitish costal spot.

The larva is greyish-green; head and plate of 2 black: in blotches in leaves of Epilobium alsinifolium.

[2] Note The forewing ground colour is bright orange decorated with white and silvery-grey marks.It closely resembles Mompha terminella.

In the east, the range extends to Zabaykalsky Krai and the Kuril Islands in Russia.