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Eumetazoa (metazoans)- 
    
Bilateria (bilaterally symmetrical animals)- 
    
Protostomia (protostomes)- 
    
    
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Arthropoda (arthropods)- 
    
    
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Order Hemiptera- 
    
Superfamily Aphidoidea- 
    
Family Aphididae- 
    
Genus Longicaudus- 
        
Species Longicaudus cornutus
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Species Longicaudus dunlopi
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Species Longicaudus himalayensis
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Species Longicaudus kumauni
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Species Longicaudus naumanni
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Species Longicaudus trirhodus
 
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