Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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Upcoming Events

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington


Species Phormia regina - Black Blow Fly

Blow Fly - Phormia regina - male Phormia regina - female Blow Fly - Phormia regina Phormia regina - male Phormia regina - male Fly - Phormia regina Scavenger fly - Phormia regina Blowing bubbles - Phormia regina
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.