Hemiptera Linnaeus, 1758 - true bugs
   Sternorrhyncha Amyot & Audinet-Serville, 1843 - aphids, psyllids, whiteflies and scales
     Aphidodea
       Phylloxeroidea Herrich-Schaeffer, 1854
         Adelgidae (Annand, 1928) - adelgids
           Pineinae
             Pineus Shimer, 1869
               Pineus Shimer, 1869
                 Pineus englemanni Annand