Belongs within: Sternorrhyncha.
The Aleyrodidae, whiteflies, are small plant-sucking bugs with immobile nymphs, some species of which are notorious crop pests.
Characters (from Grimaldi & Engel 2005): Adults usually covered with a mealy, flocculent wax, secreted by pairs of large glands on several abdominal sternites, spread over body using combs of hairs on hind legs. Antennae reduced to six or fewer segments; rostrum with four segments, segment two telescoping into segment one. Wing venation extremely reduced. First instar mobile; subsequent instars sedentary, with atrophied appendages; vasiform orifice present at tip of abdomen for expelling honeydew: anus opening into deep median fold in tergite eight, with lingula flicking away droplets forming therein; quiescent prepupal and pupal instars present prior to adulthood.
<==Aleyrodidae [Aleyrodoidea, Aleyrodomorpha]
| i. s.: Dialeurodes S35
| |--D. citri S35
| `--D. pallidus G01
| Trialeurodes vaporariorum S35
| Parabemisia myricae MHG04
|--Heidea cretacica GE05
|--Bernaea [Bernaeinae] GE05
| `--B. neocomica GE05
`--+--Siphonaleyrodinae S35
|--Aleurodicinae S35
| |--Radialeurodicus Bondar 1923 S35
| |--Udamoselis Enderlein 1909 [Udamoselinae] S35
| |--Synaleurodicus Solomon 1935 S35
| | `--*S. hakeae Solomon 1935 S35
| `--Aleurodicus S35
| |--‘Aleyrodes’ albofloccosa (Froggatt 1918) S35
| `--A. dispersus ZS10
`--Aleyrodinae S35
|--Tetraleurodes stypheliae (Maskell 1896) [=Aleyrodes stypheliae] S35
|--Zaphanera Corbett 1926 S35
|--Aleurochiton forbesii S35
|--Aleyrodes S35
| |--A. atriplex (Froggatt 1911) S35
| `--A. brassicae I92
|--Aleurolobus S35
| |--A. barodensis MHG04
| `--A. niger (Maskell 1896) [=Aleyrodes niger] S35
|--Bemisia S35
| |--B. argentifolii F04
| |--B. decipiens (Maskell 1896) [=Aleyrodes decipiens] S35
| `--B. tabaci F04
|--Aleurotrachelus Quaintance & Baker 1914 S35
| |--A. croceatus (Maskell 1896) [=Aleyrodes croceatus] S35
| |--A. dryandrae Solomon 1935 S35
| `--A. limbatus (Maskell 1896) [=Aleyrodes limbatus] S35
`--Aleurocanthus S35
|--A. banksiae (Maskell 1896) [=Aleyrodes banksiae] S35
|--A. hirsutus (Maskell 1896) [=Aleyrodes hirsutus] S35
|--A. rugosa G01
|--A. t-signatus (Maskell 1896) [=Aleyrodes t-signatus] S35
`--A. woglumi MHG04
*Type species of generic name indicated
REFERENCES
[F04] Ferrar, P. 2004. Australian entomology: isolated, or in touch with the rest of the world? Australian Journal of Entomology 43 (3): 329-333.
[GE05] Grimaldi, D., & M. S. Engel. 2005. Evolution of the Insects. Cambridge University Press: New York.
[G01] Gupta, S. K. 2001. A conspectus of natural enemies of phytophagous mites and mites as potential biocontrol agents of agricultural pests in India. In Acarology: Proceedings of the 10th International Congress (R. B. Halliday, D. E. Walter, H. C. Proctor, R. A. Norton & M. J. Colloff, eds) pp. 484-497. CSIRO Publishing: Melbourne.
[I92] Imes, R. 1992. The Practical Entomologist. Aurum Press: London.
[MHG04] Maynard, G. V., J. G. Hamilton & J. F. Grimshaw. 2004. Quarantine—phytosanitary, sanitary and incursion management: an Australian entomological perspective. Australian Journal of Entomology 43 (3): 318-328.
[S35] Solomon, M. E. 1935. On a new genus and two new species of Western Australian Aleyrodidae. Journal of the Royal Society of Western Australia 21: 75-91.
[ZS10] Zborowski, P. & R. Storey. 2010. A Field Guide to Insects in Australia. Reed New Holland: Sydney.
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