RK2. Adults have irregularly bent marginal hairs, especially on the posterior border of the wing. Macrochaetae are stiff and frequently truncated, bent or split. Females have reduced viability and fertility.
Irregularly bent marginal hairs, especially on posterior border of wings. Bristles stiff and frequently bent or split. Viability and fertility of males good. Viability and fertility of females reduced. RK2.