| regnum = Animalia | phylum = Arthropoda | classis = Insecta | subclassis = Pterygota | infraclassis = Neoptera | superordo = Endopterygota | ordo = Siphonaptera | ordo_authority = Latreille, 1825 | subdivision_ranks = Infraorders | subdivision = Ceratophyllomorpha Hystrichopsyllomorpha Pulicomorpha Pygiopsyllomorpha | synonyms = Aphaniptera }} Flea's the common name for insects of the order Siphonaptera which are wingless insects whose mouthparts are adapted for piercing skin and sucking bloo… (More on Flea)