macrochaeta & adult thorax
RK2. Adults have extra pigmentation which is confined to the scutellum. One or more thoracic macrochaetae is duplicated (frequently the scutellar bristles). Eyes are slightly more oval than normal. Wings are slightly abnormal in shape and position. The phenotype is not always completely penetrant.
Extra pigmentation confined to scutellum. One or more thoracic bristles duplicated. Eyes slightly more oval than normal. Wings slightly abnormal in shape and position. Characters not always penetrant. Viability and fertility good in both sexes. RK3.