Name: Big Bill Livonia Michigan (Zone 6a) If you need to relax, grow plants!!
Came in on a bird.
Egg mass laid nearby. Then they crawled.
Most caterpillars produce silk threads and go airborne.
Egg mass could have been on just about anything that you brought home.
Who knows?
Orchid lecturer, teacher and judge. Retired Wildlife Biologist. Supervisor of a nature preserve up until I retired.