Polytene chromosomes apparently normal.
adult abdomen & cuticle | female
Heterozygous females show a reduction of the black-pigmented stripes on the last segments of the abdomen. Expression of this phenotype is variable. Males do not show this phenotype. Heterozygotes have good viability and fertility.
Black strips on last abdominal segments of female reduced; expression variable. Male unaffected. Homozygous lethal. RK2.