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Genus Musca

Fly - Musca domestica Small, quick flies seek ID - Musca autumnalis - male Mating Flies - Musca autumnalis - male - female House flies - Musca domestica - male - female Fly maybe Muscidae in a lek - Musca autumnalis Muscid? - Musca autumnalis - male Fly 559A 744 & 7453 & 7455 - Musca autumnalis - male Musca domestica puparium? - Musca domestica
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon (Calyptratae)
Superfamily Muscoidea
Family Muscidae (House Flies and kin)
Subfamily Muscinae
Tribe Muscini
Genus Musca
Explanation of Names
Musca Linnaeus 1758
Latin musca 'a fly'(1) (cognate to midge)
Numbers
2 spp. in our area (both adventive), dozens in the Old World(2)
Size
adult 5‒10 mm, larva up to 12 mm
Identification
Adult:
M. autumnalis: female eyes separated by black median stripe with straight sides that occupies ~⅓ of distance between eyes; male eyes nearly touch; female thorax grayish, abdomen gray on top with some yellow on sides; male thorax dark blue-gray, abdomen orange with black dorsal stripe
M. domestica: female eyes separated by ovoid frontal stripe; male eyes close together but separated by narrow frontal stripe
Range
Old World genus (now cosmopolitan), most spp. tropical(2)
Remarks
Due to their habit of feeding on foul substances and human food, several species spread bacterial disease
Print References
Sabrosky C.W. (1959) Recognition of species of Musca. Cooperative Economic Insect Report 9: 988. (Full text)
Works Cited
1.Dictionary of Word Roots and Combining Forms
Donald J. Borror. 1960. Mayfield Publishing Company.
2.Manual of Central American Diptera
Brian V. Brown et al. 2009. NRC Research Press.