1. Scarlet is a new eye color identical in appearance with vermilion but in the third chromosome.2. When scarlet is crossed to vermilion, normal red eyes result, except where sons inherit vermilion from their mother.3. Scarlet gives a crossover percentage of 2.7 with dichæte and 25.4 with hairless.4. Pinkoid is a new second chromosome mutant that appeared contemporaneously with scarlet, and that affects both the color of the eye and the shape of the wings.