Drosophila is a genus of small flies, belonging to the family Drosophilidae, whose members are often called "fruit flies" or more appropriately vinegar flies, wine flies, pomace flies, grape flies, and picked fruit-flies, a reference to the characteristic of many species to linger around overripe or rotting fruit. A second, related fly family, the Tephritidae, are also called fruit flies; these feed primarily on unripe or ripe fruit, with many species being regarded as destructive agricultural