A White-Eyed Mutant of the Mediterranean Fruit Fly1

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Abstract
A white-eyed female Mediterranean fruit fly, Ceratitis capitata (Wiedemann), was found in the laboratory culture at Honolulu, Hawaii (Fig. 1). This female was placed with normal unmated males (i.e., males with dark-bluish eyes having erimson centers such as are found in the laboratory cultures and in the native populations) in an ovipositional cage (Keiser et al. 1972), provided with sugar, water, and protein hydrolysate, and allowed to mate. Twelve days later, eggs were collected from the gravid female, counted, and placed on the standard larval-rearing medium (Tanaka et al. 1969). Subsequently, the pupae were removed and held for adult emergence. The resulting F1 progeny were all of the normal phenotype. To perpetuate the white-eyed character for use as a genetic marker, we allowed the normal-appearing F1 progeny to mate. The resulting F2 progeny had either normal-appearing eyes or white eyes.

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