A black and white two-winged fly (Ceratitis capitata) found in many warm regions of the world, the larvae of which destroy citrus and other fruit crops. or Med fly Fruit fly (Ceratitis capitata) proven to be particularly destructive to citrus crops, at great economic cost. The Med fly lays up to 500 eggs in citrus fruits (except lemons and sour limes), and the larvae tunnel into the fruit, making it unfit for human consumption. Because of this pest, quarantine laws regulating fruit importation have been enacted worldwide