- A genus of myiasis-producing fleshflies (family Calliphoridae) with medium-sized metallic-colored adults; includes the Old World screw worm, C. bezziana (sometimes called Cochliomyia bezziana), which is a primary invader, comparable to Cochliomyia hominivorax, the New World screw worm fly, whereas C. megacephala is an Old World equivalent to Cochliomyia macellaria, both being secondary or saprophytic invaders. [G. chrysos, gold, + myia, fly]
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* * *Chryso·my·ia (kris″o-miґyə) [chryso- + Gr. myia fly] a genus of flies of the family Calliphoridae, found in Africa, Australia, and parts of Asia. Several species lay eggs on wounds or wool, causing cutaneous myiasis.
Medical dictionary. 2011.