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Family Aleyrodidae - Whiteflies

Which tiny speck of a fly is this, please? - Tetraleurodes mori scales? Whiteflies Arrowwood whitefly - Trialeurodes pergandei Aleuroplatus gelatinosus puparium? - Aleuroplatus Aleuroplatus? Cabbage Whitefly? Adult in 'nest' - Paraleyrodes
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
Suborder Sternorrhyncha (Plant-parasitic Hemipterans)
Superfamily Aleyrodoidea
Family Aleyrodidae (Whiteflies)
Synonyms and other taxonomic changes
overview in(1)
Numbers
~1,600 spp. in ~160 genera total(2)(3)
Size
Usually <3 mm
Identification
Adults are winged and covered with white dust or waxy powder. Identification to genus or species usually requires close examination of so-called pupa (inactive last nymphal stage).
Keys in(3)(4) (based on pupae)
Food
Feed on leaves
Life Cycle
First instar nymphs are active, subsequent instars are sessile and look like scales.