Pigmented area corresponds to dorsal half of the eye, with a pigmentation level ranging from orange to red. Ventral section of eye is yellow, with a ventral posterior red section and some mottling. Pattern of pigmentation is not affected by any of 15 suppressors and 9 enhancers of PEV. The proportion of pigmented ommatidia increases when the flies are raised at 18oC compared to 25oC. The small ventral pigmented area is enlarged.