Legs are very reduced in length, with one occasionally completely missing. The reduction in length is most pronounced in the metatarsus and tarsal regions. Some tarsi are either fused or absent. Bristles are thin and very short. Wings are rarely fully expanded. Flies live for only a very short time after eclosion. Eye colour: brighter than wild-type.
RK3. Legs extremely short; reduction in length most pronounced in metatarsal and tarsal regions. Some tarsi fused, others absent. Bristles thin and short. Adult short lived.