Homozygotes have shortened legs due to fusion of 2-4 tarsal segments. Sex combs are reduced in males. The wing blade is shortened. The wing width is almost normal and the wing is oval. Vein L2 is interrupted and L5 is shortened. The wings are slightly raised. Eyes are stripy and strongly reduced in size. The eye is rough due to irregular faceting. Lifespan is reduced; all homozygous adults have died by 12 days after pupation. Homozygous males and females are completely sterile. Ovaries are reduced in size. Mobility is reduced.