Cinnabar Moth (Tyria jacobaeae)
Introduced from France and released in the USA in 1959. This moth prefers warm, sunny areas with dense tansy ragwort infestations.
Tansy Ragwort Flea Beetle (Longitarsus jacobaeae)
Introduced from Italy and Switzerland in the USA in the late 1960s. These flea beetles prefer dense, unshaded tansy ragwort infestations.