Male and female genitalia and analia are missing or abnormal in homozygotes. Parasegment 14 is partially transformed into parasegment 13, and there is a rudimentary setal belt in A9 in homozygous embryos.
Hemizygous individuals have abnormal posterior spiracles and a rudimentary ninth ventral setal band.
Revertant of the Abd-Biab9-Tab phenotype. When hemizygous, shows stronger transformation of the eighth ventral setal band toward that of the seventh than does Abd-B/Df(3R)P9; also, abnormal posterior spiracles and a rudimentary ninth ventral setal band.
Complements iab-5 and iab-6 alleles.
Revertant.