Fleas (likely adult cat or dog fleas)

Homes, carpets, bedding, upholstery, and animal resting areas; immature stages develop in protected organic debris.

Adults consume blood from mammals and sometimes birds. Larvae feed mainly on dried blood and organic debris in the environment.

Wingless, laterally flattened, and powerful jumpers; adults seek hosts, while eggs and larvae accumulate off-host. Populations can persist indoors through multiple life stages.

Bites cause itching and allergic dermatitis and may transmit pathogens or tapeworms. They are also food for some predators, but indoor infestations generally require pet treatment and thorough environmental cleaning.