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For Insects, Spiders & Their Kin
For the United States & Canada
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Subfamily Aphidinae

no guess Green aphid on dogbane - Aulacorthum solani Sanbornia juniperi Aphids - Uroleucon Acyrthosiphon lactucae 5013692 aphid - female Aphids on milkweed? - Aphis nerii Showing cauda - Melanaphis sacchari
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 Aphidoidea
Family Aphididae (Aphids)
Subfamily Aphidinae
Remarks
Many species come in both pink and green forms.
Many have alternative host plants; they spend a number of generations on one and then they produce alates that migrate to the other host which can be a completely unrelated plant species.