Lepidopterism: two cases of systemic reactions to the cocoon of a common moth, Chelepteryx collesi.

Lepidopterism is a general term for the ill-effects to humans from contact with moths and butterflies. We describe two cases of systemic reactions after contact with the cocoon of the Australian species Chelepteryx collesi, or white-stemmed gum moth--irritant and toxic effects in one and a systemic allergic reaction in the other. Early removal of urticating hairs from the skin in such cases may be advisable.