The black blowfly, the larvae of which were formerly used in the treatment of septic wounds because they secrete a proteolytic enzyme that aids in the removal of dead tissue; it is a frequent cause of maggot infestation of sheep, depositing eggs in the wool, and is a widely distributed cold weather species that lays its eggs on dead or decaying tissues.
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a blowfly which causes a cutaneous myiasis of sheep in the United States and Canada. The larvae (maggots) have also been introduced into infected wounds to facilitate healing.Medical dictionary. 2011.