Oak processionary the same manner. Oak is its preferred food source, but the moth also eats the leaves of hazel, hornbeam, sweet chestnut, birch and beech. The moths pose an increasing threat to humans as their range is extended. The backs of older caterpillars (3rd to 6th instars) are covered with up to 63,000 pointed defensive bristles, which contain an urticating toxin (e.g., the protein thaumetopoein). The setae break off readily, become airborne and can cause epidemic caterpillar dermatitis (lepidopterism), manifested as a papular rash, pruritus, conjunctivitis and, if inhaled, pharyngitis and respiratory distress, including asthma or even anaphylaxis; however, as of
Animal and Plant Health Inspection Service statutes: Animal Health Protection Act, "et seq." Governs the prevention, detection, control, and eradication of diseases and pests of animals, where "animal" is defined as "any member of the animal kingdom (except a human)." (1) (West 2009). Animal Welfare Act (Laboratory Animal Welfare Act of 1966), "et seq." Originally intended to prevent the theft of pets for sale to research facilities, the AWA now broadly regulates minimum standards of care and treatment of animals in research, exhibition, transport, and by dealers. It exempts birds, rats, or mice bred for use in research, horses not used for research, cold blooded animals,