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Organism (ORGA)
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last updated: 26 Aug 2026
Organism information
Cochliomyia hominivorax
Realm Eukaryota
Subrealm Opisthokonta
Kingdom Animalia
Phylum Arthropoda
Class Insecta
Order Diptera
Suborder Brachycera
Family Calliphoridae
Subfamily Chrysomyinae
Genus Cochliomyia
Species hominivorax
  • Lucilia hominivorax Coquerel, 1858
  • Cochliomyia americana Cushing & Patton, 1933
  • Callitroga hominivorax Coquerel, 1858
  • Callitroga americana Cushing & Patton, 1933
  • Compsomyia homicida Brauer, 1899
  • Somomyia fulvobarbata Bigot, 1888
  • New World screwworm
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  • New World screwworm fly
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Insects
Wild
Characteristics related to biosafety
Tropical and subtropical Americas; the species is native to the New World, with a historical range from the southern United States through Central America, South America and the Caribbean.
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No single centre is confirmed. Geographic genetic structure occurs across Caribbean and South American populations, while genetic variability is broadly distributed across South America.
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Tropical and subtropical terrestrial environments with warm temperatures and suitable humidity. Larvae develop in living tissues of warm-blooded hosts; pupae develop in soil or leaf litter.
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Historically distributed through tropical and subtropical Americas and Caribbean. Present in South America, the Caribbean, Central America and Mexico following the resurgence since 2023.
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Larvae are obligate parasites causing primary traumatic myiasis in warm-blooded animals, including livestock, wildlife and humans. Untreated infestations may cause severe tissue damage and death.
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Additional Information
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