麻蝇即肉蝇，是双翅目麻蝇科（Sarcophagidae）下的所有苍蝇的统称。麻蝇以卵胎生的方式繁殖，大部分种类的麻蝇都在腐肉、粪便或者腐败的物质上产下蛆，少数种类会在哺乳动物的伤口上产蛆，还有一些种类会将蛆产在其他昆虫身上，成为这些昆虫的寄生虫。虽广泛分布于世界，但多分布于热带。多为腐食性，雌体将幼虫（不是卵）产在腐肉上。有的寄生于昆虫。凯得氏麻蝇寄生于蝗虫，把幼虫产在蝗虫翅的下面，幼虫钻入其体内食其内部器官，后在土中化蛹。

Flies in the family Sarcophagidae (from the Greek σάρκο sarco- = flesh, φάγε phage = eating; the same roots as the word "sarcophagus") are commonly known as flesh flies. They differ from most flies in that they are ovoviviparous, opportunistically depositing hatched or hatching maggots instead of eggs on carrion, dung, decaying material, or open wounds of mammals, hence their common name. Some flesh fly larvae are internal parasites of other insects such as Orthoptera, and some, in particular the Miltogramminae, are kleptoparasites of solitary Hymenoptera.