The Collaborative International Dictionary
Aphidophagous
Aphidophagous \Aph`i*doph"a*gous\, a. [Aphis + Gr. ? to eat.] (Zo["o]l.) Feeding upon aphides, or plant lice, as do beetles of the family Coccinellid[ae].
Wiktionary
aphidophagous
a. (context zoology English) Feeding on aphids.