[Order] Hemiptera Linnaeus, 1758 - true bugs
   Suborder Sternorrhyncha Amyot & Audinet-Serville, 1843 - aphids, psyllids, whiteflies and scales
     Infraorder Aphidodea
       Superfamily Phylloxeroidea Herrich-Schaeffer, 1854
         Family Adelgidae (Annand, 1928) - adelgids
           Subfamily Adelginae
             Genus Adelges Vallot, 1836
               1 Subgenus Adelges Vallot, 1836
               2 Subgenus Cholodkovskya Börner, 1909
               3 Subgenus Gilletteella Börner, 1930
               4 Subgenus Aphrastasia Börner, 1909
               5 Subgenus Sacchiphantes Curtis
               6 Subgenus Dreyfusia Börner