Mild defects in eye morphology. Defects in the development of the mechanosensory bristles including the macrochaetae, microchaetae and bristles surrounding the eye. Shortened head and scutellum. fw34e/Df(1)KA10 transheterozygotes do not produce any viable adult females, female lethal phase occurs in the pupal stages.
Originally showed eye surface medium folded; bristles much gnarled. Schultz and Curry report that stock in 1940 showed gnarled bristles and eye small but no vertical fold. RK2.