By linking malaria, we once again tend to the possibility that albino luna moths are deliberately self-medicating on sweetgum against the parasite, although we have as yet not found the actual passgae in the article that mentions gold. First we must read the article to find where it mentions gold, at which pint it will link to gold accumulation in sweetgum (Liquidambar):
Type in at Pubmed: 27382019 or www. for "Infectivity of Plasmodium falciparum in Malaria-Naive Individuals is Related to Knob Expression and Cytoadherence of the Parasite" which states....'dramatic reduction in infectivity and the ability to adhere to CD36.'
Although in parts-per-million, the amount of gold in sweetgum may assist the luna moth (albino or otherwise) in self-medication against internal parasites. The adherence factor relates to uptake of fatty acids by CD36 in cancer metastasis.