woolly pear aphid Order HEMIPTERA Family Aphididae Genus Eriosoma Species pyricola Author Baker & Davidson
woolly apple aphid Order HEMIPTERA Family Aphididae Genus Eriosoma Species lanigerum Author (Hausmann)
woolly alder aphid Order HEMIPTERA Family Aphididae Genus Prociphilus Species tessellatus Author (Fitch)
western wheat aphid Order HEMIPTERA Family Aphididae Genus Diuraphis Species tritici Author (Gillette)
waterlily aphid Order HEMIPTERA Family Aphididae Genus Rhopalosiphum Species nymphaeae Author (Linnaeus)
walnut aphid Order HEMIPTERA Family Aphididae Genus Chromaphis Species juglandicola Author (Kaltenbach)
