Bristles are shorter and thinner than normal (fully penetrant phenotype). Eyes are large with some damaged facets. Wings are short and incised on the inner margins, longitudinal veins are abnormally positioned and crossveins are absent. The expression and penetrance of the wing and eye phenotypes is variable, although they are frequently associated together. Emergence is slightly delayed. Male viability is approximately 50% of wild-type.

male-sterile male viability about 50% wild type. female-sterile. RK2. Bristles short and thin. Eyes large, have deranged facets. Wings short, have incised inner margins and abnormal venation. Variable expression of eye and wing effects. Eclosion slightly delayed.