Painted Lady butterflies are nearly identical to Monarch butterflies, with a wingspan of ~2 1/2 inches. They fly fast and flutter their wings, similar to Humming Birds. They are attracted to a very wide variety of host plants, thus these beautiful butterflies will naturally linger around the release area! The minimum temperature for release on a bright sunny day is 60F. Painted Ladies are the best choice for a large mass release (up to 100 in one mass release box).