Campion Moth vs Lychnis Moth

The Campion moth, Sideridis rivularis, is a noctuid moth distributed across Europe and widely recorded in Britain. Adults have brown to purplish-brown forewings, a wingspan of about 27 to 30 millimeters, and two forewing stigmata that tend to join at the base, features that help distinguish it from the similar Lychnis moth. Its caterpillars feed inside the seed capsules of campions in the genus Si...

The Lychnis Moth (Hadena bicruris) is a nocturnal member of the family Noctuidae found across much of Europe and in parts of western Asia and North Africa. Females lay eggs in the flowers or developing seed capsules of campions and related plants in the pink family, and the caterpillars later consume the seeds. The breeding cycle is therefore closely tied to the flowering and seed production of it...