Flea (Pupal case/Cocoon)

Found in carpets, pet bedding, and floor crevices where larvae feed and mature into the pupal stage.

Larvae eat organic debris and adult flea feces (flea dirt); adults consume the blood of mammals or birds.

Larvae spin a sticky silken cocoon that attracts dirt and debris for camouflage. They can remain dormant inside for months until they sense vibrations or CO2 indicating a host.

Risks include skin irritation, allergic dermatitis, and transmission of diseases/parasites (like tapeworms); they offer no significant ecological benefit in domestic environments.