Hemizygous lethal. Semilethal when heterozygous with l(3)87Da1. Adult survivors exhibit variation in dorsocentral bristle number and length and females greatly outnumber males.
Surviving heterozygotes with l(3)87Da1 exhibit variation in dorsal central bristle number and length and females greatly outnumber males. l(3)87Da2/ l(3)87Da3 survivors have normal morphology.