RK2. Wings are shorter and narrower than normal, with wing veins L3 and L4 shifted slightly closer together than in wild-type flies. Wings are occasionally truncated. The wing membrane is depressed in the centre into a slight concavity, giving a slight scooped effect.
Wings shorter and narrower with L3 and L4 shifted toward each other, occasionally truncated. Wing membrane depressed in center into slight concavity, giving slight scooped effect. RK3.
Not easily classified.