Wings are shorter and broader than normal, with a concave or convex membrane and are held abnormally. Eyes are small, dark and rough. Macrochaetae are short, stiff and occasionally bent. The trident pattern is more pigmented than wild-type. The antennae and aristae are abnormal.

Wings short, broad, either convex or concave and abnormally held. Eyes small, dark and rough. Bristles short, stiff and occasionally bent. Trident pattern more pigmented. Abnormal antennae and aristae. RK2.