Humpbacked fly
Photo: Mark Ascerno	Size	1/8 inch. (It is often challenging to recognize flies from a picture. Because different species may need to be treated differently, be sure a fly problem is correctly identified before attempting control.)
	Where/when	Found indoors in any room where decaying organic matter is found, such as trash containers, drains, and plumbing or sewer leaks. Can be found anytime during the year.
	Significance	The humpbacked fly is primarily a nuisance because it can occur in large numbers. Although it can potentially contaminate food with disease-causing organisms under specific circumstances, it is generally not considered a health problem.