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For Insects, Spiders & Their Kin
For the United States & Canada
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Fall Fund Drive


Species Phormia regina - Black Blow Fly

Blow Fly - Phormia regina Phormia regina Phormia regina Phormia regina Large green fly bubbling on the fence - Phormia regina calliphorid 3 - Phormia regina Black Blow Fly - Phormia regina Phormia regina - female
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon (Calyptratae)
Superfamily Oestroidea
Family Calliphoridae (Blow Flies)
Subfamily Chrysomyinae
Genus Phormia
Species regina (Black Blow Fly)
Explanation of Names
Phormia regina (Meigen 1826)
6-14 mm
Adult metallic dark blue or olive-green with an orange front spiracle
North America; Eurasia; Hawaii(1)
Attracted to dung and carrion(2)
a cool weather species, most commonly seen in spring and fall; hibernates as adults under bark of rotting logs, etc.(2)
used in forensics to determine time of death (Byrd & Allen 2001)
Maggots used to clean wounds
Can cause secondary myiasis in animals; pest of livestock(2)
very common throughout NA(3)
See Also
Some metallic Muscidae, e.g. Eudasyphora, are superficially similar with a more gradual bend in vein M.