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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Protostomia (protostomes)
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Arthropoda (arthropods)
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Order Hemiptera
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Superfamily Aphidoidea
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Family Aphididae
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Genus Essigella
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Species Essigella alyeska
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Species Essigella californica
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Species Essigella critchfieldi
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Species Essigella eastopi
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Species Essigella essigi
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Species Essigella fusca
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Species Essigella hillerislambersi
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Species Essigella hoerneri
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Species Essigella kathleenae
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Species Essigella kirki
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Species Essigella knowltoni
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Species Essigella pini
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Species Essigella wilsoni
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