International Compendium of Zoological Nomenclature / Biology Textbooks

• Aphidian — Pertaining to aphids or the aphid group; characteristic of sap-sucking insects from the Aphidoidea superfamily. As a plural noun (afidieni), it denotes this systematic group of phytophagous insects.
• Aphidophagous — Feeding exclusively or predominantly on aphids; aphid-eating. In entomology and biological pest control, the term describes predatory or parasitoid organisms (such as ladybugs or syrphid larvae) that act as natural regulators of aphid populations.