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Description
Nomenclature and Literature
Data Records

Ornidia obesa Fabricius
Figs. 3, 4, 6, 10 & 14

Taxonomy Ornida obesa is a ubiquitous fly in the New World tropics and once was more widespread in the Old World tropics and the north of the New World. In the New World, the species have been recorded as far north as Colorado, Massachusetts and New York, and in the Old World tropics as far west as mainland Africa, but there are no modern records from these areas [in the above synonymy I have tried to give all the exotic citations to obesa, but only the principal New World ones]. Ornidia obesa is known to breed in human latrines and other semiliquid wastes, and back when sanitation was not as good as today, Ornidia obesa apparently had a more extensive range. As Macquart (1850: 311) first noted, Ornidia obesa is the only New World fly that has spread to the Old World tropics. Ornidia obesa is known to carry bacteria of public health importance (Salmonella, Shigella (Alcivar & Campos 1946) and Mycobacterium (Currie 1910). The species is also beneficial as the maggots can convert coffee-production waste products into useful protein sources for cattle feed (Larde 1989).

Distribution: Massachusetts, New York, New Jersey, Colorado, Arizona, New Mexico*, Texas*, Florida*, Bahamas*, Cuba*, Jamaica*, Dominician Republic*, Haiti*, Puerto Rico*, Lesser Antilles*, Trinidad*, Mexico*, Guatemala*, El Salvador*, Belize*, Honduras*, Nicaragua*, Costa Rica*, Panama*, Colombia*, Venezuela*, Surinam*, Guyana*, French Guiana*, Ecuador*, Peru*, Brazil*, Paraguay*, Bolivia*, Argentina*; Hawaii*, Marquesas*, Society Islands*, Marshall Islands*, Samoa*, Niue*, Solomons Island*, New Caledonia*; Java; Seychelles, Madagascar, Mauritius, Reunion, Tanzania, South Africa.