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 floccus (Patch, 1909) - red spruce adelgid