Egg -- Eggs are retained within the body of the female.
Larva -- The larvae are fully grown and sticky when extruded by the female and stick in the wool.
Pupa -- Sheep ked pupae are chestnut brown and are stuck in the wool on the belly, shoulders, and thighs.
Hosts -- Sheep are the only known host animals of the sheep ked.
Damage -- Primarily, damage is to lambs. High ked populations cause unthriftiness and emaciation.
Life History -- The entire life cycle of the ked is spent on sheep. Adult keds survive only 2 to 8 days when off the host. Eggs are retained within the body of the female. The female ked extrudes one mature larva every 7 to 8 days. The larva immediately pupates. Pupae can be found commonly on the belly, shoulders, and thighs throughout the year. The total life cycle may take from 3 to 6 weeks, depending on temperature. The adults live 3 to 4 months and bear 10 to 12 larvae in this time.