An adventive colonist, being relatively unknown in the British Isles until the late 1940's, when it started to appear in numbers in the south-east. Since then it has spread rapidly and now can be found as far north as Lincolnshire.
The main foodplant is sweet william (
), and as a result it is often common in gardens, but it also feeds on bladder campion (
), in both cases consuming the seeds.
The main flight period is from June to July, when the species comes to light.