There are dozens of different species of fleas, but the Cat Flea is by far the most common on pets and in structures in the United States. It originated in Africa as an ectoparasite of large native cats. The Cat Flea is a blood feeder as an adult, and a scavenger as a larva. The adults remain on animals they feed on unless physically forced off, and may live up to a year. The female lays eggs on the host animal and these eggs fall to the floor or other surfaces below. The eggs hatch in a few days and the larvae begins to feed on organic debris it finds, but also must consume some dried blood in order to progress to the pupa stage. This dried blood comes from the dried feces of the adult fleas that falls off the (host) pet. Under ideal conditions, an egg may mature to an adult in as little as two weeks. If there is no host activity to stimulate some of the pupa to hatch to the adult stage, this process may take several months. The Cat Flea is a possible vector of bubonic plague, and it is a common flea species on raccoons and opossum, as well as the primary flea on both dogs and cats in the United States. All fleas are similar in appearance. They present as wingless insects with bodies flattened from side to side and long hind legs for jumping. They are black to reddish black in color and have spiny legs. Flea larvae are rarely seen, but they are legless and whitish with a brown head, unless they have fed on fecal matter from the adults, in which case they assume a reddish color. They are covered with short hairs, and when disturbed, are able to flip about violently in order to escape. Elimination of fleas on household pets is important in preventing the production of eggs that fall onto carpeted areas inside. If an infestation occurs, Bugs-B-Dead can treat the interior and exterior with natural products made from essential oils for maximum control. Vacuuming carpets before and after the application is important, as the vibration and contact will stimulate the emergence of adult fleas from the pupa, exposing them to the application. It normally takes 25 days for most products to be effective.