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an immature form of a fly of Eristalis or Helophilus spp. that can infest a necrotic wound or carcass.
Synonym(s): Eristalis sp
larva of Eristalis spp., a hover fly of no veterinary importance other than in confusing an identification. Called also filth fly. The maggots are found in areas with high concentrations of organic matter, e.g. stable drains.