[3] It is found in Europe and Northern Asia (excluding China) and North America.

The larvae are up to 3 mm long and white with brown sclerotised plates.

Brassicogethes aeneus is an important pest of oilseed rape.

Oviposition and feeding damage the buds of oilseed rape and similar Brassicas and may cause the flowers to drop.

Both adults and larvae feed on the pollen and nectar in the flowers.