antenna & eye | ectopic
head & eye | ectopic
Ectopic eye formation in the anterior region of the head, just ventral to the antenna. The ectopic eyes have nearly normal facets with interommatidial bristles, cone cells, pigment cells, photoreceptors and rhabdomeres. Ectopic eyes also appear on the antenna but are smaller and occur with lower frequency. Ectopic eyes are not seen on any other adult structure. An arista to leg transformation also occurs. A claw appears on the distal end of the resulting leg-like structure.