Fleas

 
Fleas are one of the more important groups of insect pests because fleas not only cause discomfort by biting, but fleas can transmit several diseases such as plague and murine typhus. Cat fleas are the most common domestic flea. Other fleas that are rarely encountered are the Dog flea and the Human flea, but Cat fleas account for almost all the fleas found on cats and dogs in the United States.