Male fertility reduced.
Some eggs are laid.
Homozygous females lay eggs that fail to hatch.
lays eggs. eggs fail to develop
fs(1)M431, fs(1)M46[+]/fs(1)M461 has female semi-sterile | dominant phenotype
fs(1)M43[+]/fs(1)M431, fs(1)M461 has female semi-sterile | dominant phenotype