Embryos have completely unpigmented and weak cuticles. A portion of the homozygous embryos die before blastoderm formation with a defect in nuclear division (fewer nuclei that are misshapen, asynchronous and unevenly distributed), homozygous embryos that develop after have a segmentation defect (segment fusions and deletions). Eye colour: wild-type. Catecholamine functions normal.
Boswell.
Class V Pu allele.
Class V allele.