blister beetle

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Related to blister fly: blister beetle, cantharides, Meloidae

blister beetle

n.
Any of various beetles of the family Meloidae, such as the Spanish fly, that secrete cantharidin, a substance that blisters the skin and is toxic to livestock that consume hay contaminated with the beetles. Also called meloid.
An arthropod—Cantharis vesicatoria or Lytta vesicatoria, Family Meloidae—from which ‘Spanish fly’ originates; when applied to mucocutaneous surfaces, it causes erythema, urticaria, and vesiculation; orally, it causes gastrointestinal irritation, nausea, vomiting, diarrhea, cramping, collapse; 60 mg of this nephrotoxic agent may be fatal
Management Ammonia may ameliorate the pruritus induced by blister fluid; corticosteroids may relieve pain