Cat Flea Eggs

Cat fleas, like all fleas, undergo three stages of development before emerging as adults: egg, larva and pupa. First, female cat fleas lay their eggs on their hosts’ bodies or on the ground. Eggs then drop to the ground and hatch into larvae within one to 12 days. They remain larvae for one to two weeks, at which point they become pupae. The pupal stage typically spans between four and 18 days. The sticky outer surface of cat flea pupae attracts dirt, creating a camouflaged exterior. After completing the pupal stage, cat flea adults emerge.

Upon hatching, young adult cat fleas immediately begin searching for hosts, whose blood they consume in order to survive and reproduce. They also lay eggs on the host. Female cat fleas lay between four and eight eggs after each blood meal, thus beginning the cycle anew.

Cat flea eggs are oval-shaped and white in color. They are extremely small, measuring only 0.5 mm in length. They have dry, smooth surfaces which enable them to slip to the floor. Cat flea eggs are almost impossible to see against rough surfaces such as carpet and bedding.

Warm, moist environments are most amenable to cat flea development. In dry, cold environments, eggs can die before hatching, and both the larval and pupal stages may take up to one year to complete.