40F;52D10-52E1
Wings of heterozygote spread at 45o from midline; edges curled, giving spoon shape. Sense organs along veins enlarged. Eyes mottled in Rev/lt. Homozygote somewhat more abnormal than heterozygote. Phenotype suppressed by extra Y's homozygous viable homozygous fertile
Dobzhansky, 5th Feb. 1931.
Heterozygotes show no interchromosomal effect on distal X recombination (Valentin, 1978).
All limits from polytene analysis (citation unavailable)