RK3 Eyes are smaller than normal, and wings are broad, short and slightly divergent. The last abdominal segment in male flies is frequently grooved in the mid-dorsal line and carries abnormal genitalia. Male viability is approximately 50% of wild-type. Female fertility is reduced.
Last male abdominal segment grooved in dorsal midline, has abnormal genitalia. Eyes small; wings short, broad and slightly divergent. Female fertility low; viability good. Classification difficult. RK3.
Fahmy, 1953.