Albinism and leucism are rare in Lepidoptera. If you google “Albinism and Leucism in Lepidoptera” you’ll find thousands of photos of mammals, birds, and reptiles, but only a scattering of leps, some of which are white species, not leucistics. The obvious exception is a white luna moth, which is normally green. But the photo is labeled “Albino,” while the dark ocelli stand out on all four wings. It is a leucistic. Leucism is caused by recessive alleles that don’t produce the normal pigments. Albinism is an extreme case of this in which all of the alleles are dysfunctional.
I found a Vanessa cardui that is partially leucistic, feeding with hundreds of normal morphs on Chrysothamnus bushes. I show it here with a normal form below.