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Discussion, insects and people from the 2018 BugGuide Gathering in Virginia, July 27-29

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Family Aleyrodidae - Whiteflies

Ash Whitefly? - Aleurodicus dugesii white fly instar? Whitefly Any clue for ID? - Trialeurodes WhitefliesX on Hypericum - Trialeurodes Aleurochiton forbesii whitefly Banded-winged Whitefly?
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)
~1,600 spp. in ~160 genera total(2)(3)
Usually <3 mm
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)
Feed on leaves
Life Cycle
First instar nymphs are active, subsequent instars are sessile and look like scales.