Adult Varied Carpet Beetles lay around 40 eggs that take 10 to 20 days to hatch. The larval stage lasts anywhere from 220 to 630 days, and the adult stage is only about 2-5 weeks.
The larvae are white and mature larvae turn dark red or chestnut colored. They are opposite of the varied carpet beetles in that they are wider in the front, narrower in the back. Adult females lay about 60 eggs and take 9-16 days to hatch. The larval stage lasts from 70 to 94 days and the adult stage lasts 4 to 8 weeks.