Pieris brassicae in North America?

Hello everyone,

I had a question about Pieris brassicae I have been wondering for a while. We all know that Pieris rapae came from Europe a long time ago and colonized North America. It is the most abundant and widespread butterfly here now. But how come the same hasn’t happened with P. brassicae? I know little about P. brassicae but is it as resilient as it’s smaller cousin? And is it possible that P. brassicae could take hold and spread through North America?

I did some research on P. brassicae straying into the USA. It appears it has only a couple of historical records.

Thanks!

Ethan