Polytene chromosomes normal.
female fertile
male fertile
haltere
wing
Homozygotes have a vgnw wing phenotype. Postscutellars and halteres are missing. vg81b2/vg83b27 transheterozygotes have vgnw wings, wild-type halteres and wild-type postscutellars.
homozygous wing phenotype like that of vgnw halteres absent postscutellar bristles absent homozygous viable female-fertile?
Stated to be lost.
Induced in: Late stage spermatid.