blister beetle

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blister beetle

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


1. a vesicle, especially a bulla, a lesion of the skin.
2. a paste containing an irritant such as cantharides used to plaster onto a horse's leg to produce counterirritation and encourage healing of a strained tendon or ligament.

blister beetle
blood blister
a vesicle having bloody contents, as may be caused by a pinch or bruise.
blister fly
internal blister
References in periodicals archive ?
Blister beetle dermatosis in Hawaii caused by Thelyphassa apicata (Fairmaire).
Clinical features of blister beetle poisoning in equids.
The blister beetle species Meloe franciscanus and the host bees meet in the dunes of southwestern U.
However, male bees paid visits to models scented with extracts from blister beetle larvae as often as they did to real beetle clumps.
Blister beetles are poisonous to animals that eat them.
COUNTRYSIDE: I have been plagued with blister beetles for the past several years.