dj, I am assuming the lady bugs they released are not native to your area, whereas, wolves once roamed the US.
Nothing good ever comes out of releasing species not native to a continent, examples are endless, English sparrows and starlings in the US, rabbits in Australia, snakes on islands in which snakes never existed. In Guam almost all native birds have been wiped out due to the introduction of the brown tree snake, the birds o the island never had to evolve with snakes, thus no natural defense against them.
Nothing good ever comes out of releasing species not native to a continent, examples are endless, English sparrows and starlings in the US, rabbits in Australia, snakes on islands in which snakes never existed. In Guam almost all native birds have been wiped out due to the introduction of the brown tree snake, the birds o the island never had to evolve with snakes, thus no natural defense against them.