Aphaniptera

CeratophyllomorphaHystrichopsyllomorphaPulicomorphaPygiopsyllomorphaAphanipteraDiptera Mecoptera (scorpionflies, hangingflies, 400 spp.) (exc. Boreidae) Boreidae (snow scorpionflies, 30 spp.) Siphonaptera (fleas, 2500 spp.) Trichoptera (caddisflies) Lepidoptera (butterflies and moths) Hymenoptera (sawflies, wasps, ants, bees) Boreidae (snow scorpionflies)Tungidae (inc. chigoe flea or jigger)PygiopsyllomorphaMacropsyllidae, CoptopsyllidaeNeotyphloceratini, Ctenophthalmini, DoratopsyllinaeStephanocircidaeclade inc. Rhopalopsyllidae, Ctenophthalmidae, HystrichopsyllidaeChimaeropsyllidaePulicidae (inc. the cat flea, vector of bubonic plague)Ceratophyllomorpha (inc. the Ceratophyllidae, such as the widespread moorhen flea)