Pseudopostega crepusculella is a moth of the family Opostegidae.

A snow-white moth, the forewing has a V-shaped, light brown transverse band slightly outside the middle and two brown transverse bands at the tip, where there is also a small, black spot.

A fuscous ill-defined subapical fascia is followed by two darker costal strigulae and there is a minute black apical dot.

The moths fly from June to July depending on the location.

[5] Content in this edit is translated from the existing Norwegian Wikipedia article at no:Pseudopostega crepusculella; see its history for attribution.