FlyBase curator comment: this entry is used to capture phenotypic information when the particular allele (or allele combination) used by the author could not be determined but the context of the experiment suggests that the phenotype being described is some kind of loss of function.
Displays locomotor activity rhythm with an approximately 24h period.
The ocelli are colourless, and have lenses approximately half the wild-type size. There are approximately half the normal number of ocellar receptor cells. The compound eye is normal.