Pulex irritans is a parasitic insect. What is.it more commonly known as?
Human flea Human flea The human flea ("Pulex irritans") – once also called the house flea – is a cosmopolitan flea species that has, in spite of the common name, a wide host spectrum. It is one of six species in the genus "Pulex"; the other five are all confined to the Nearctic and Neotropical regions. The species is thought to have originated in South America, where its original host may have been the guinea pig or peccary. "Pulex irritans" is a holometabolous insect with a four-part lifecycle consisting of eggs, larvae, pupae, and adults. Eggs are shed by the female in
Gammarus pulex Gammarus pulex Gammarus pulex is a species of amphipod crustacean found in fresh water across much of Europe. It is a greyish animal, growing to long. Adult males of "Gammarus pulex" may reach a total length of , while females only grow to . The adults have a robust appearance; they are typically greyish with markings in dark brown or green. Individuals of the genus "Dendrocometes" are known to be parasites which reside on the gills of "G. pulex". "G. pulex" is found across most of Europe from the Volga drainage in the east to the British Isles in the