| Family | Common Name | Selected Genus and Species | Image |
|---|---|---|---|
| Ancistropsyllidae | Fleas | Ancistropsylla roubaudi | |
| Ceratophyllidae | Bird fleas | Ceratophyllus gallinae | |
| Chimaeropsyllidae | Elephant shrew fleas | Epirimia aganippes | |
| Coptopsyllidae | Fleas | Coptopsylla macrophthalma | |
| Ctenophthalmidae | Fleas | Callistopsyllus terinus | |
| Hystrichopsyllidae | Rat fleas | Nearctopsylla hyrtaci | |
| Ischnopsyllidae | Bat fleas | Coorilla longictena | |
| Leptopsyllidae | Rodent fleas | Amphipsylla pollionis | |
| Lycopsyllidae | Fleas | Bradiopsylla echidnae | |
| Macropsyllidae | Fleas | Macropsylla hercules | |
| Malacopsyllidae | Armadillo fleas | Malacopsylla grossiventris | |
| Pulicidae | Common fleas | Ctenocephalides canis | |
| Pygiopsyllidae | Fleas | Hoogstraalia vandiemeni | |
| Rhopalopsyllidae | Fleas | Parapsyllus longicornis | |
| Stephanocircidae | Fleas | Stephanocircus concinnus | |
| Stivaliidae | Fleas | Rectidigitus spooneri | |
| Tungidae | Chigoe fleas | Tunga penetrans | |
| Vermipsyllidae | Carnivore fleas | Chaetopsylla lotoris | |
| Xiphiopsyllidae | Rat fleas | Xiphiopsylla levis | |
| Family | Common Name | Selected Genus and Species | Image |
|---|---|---|---|
| Bahiaxenidae | Twisted-winged insects | Bahiaxenos relictus |  |
| Bohartillidae | Twisted-winged insects | Bohartilla megalognatha | |
| Callipharixenidae | Twisted-winged insects | Callipharixenos muiri |  |
| Corioxenidae | Twisted-winged insects | Triozocera mexicana |  |
| Elenchidae | Twisted-winged insects | Elenchus koebelei |  |
| Halictophagidae | Twisted-winged insects | Halictophagus curtisii |  |
| Lychnocolacidae | Twisted-winged insects | Lychnocolax maxillaris |  |
| Mengenillidae | Twisted-winged insects | Mengenilla moldrzyki |  |
| Myrmecolacidae | Twisted-winged insects | Caenocholax fenyesi |  |
| Stylopidae | Twisted-winged insects | Stylops childreni |  |
| Xeninae | Twisted-winged insects | Xenos peckii |  |