Source : Webster's Revised Unabridged Dictionary (1913)

Phytophagous \Phy*toph"a*gous\, a. [Phyto- + Gr. ? to eat.]
   (Zo["o]l.)
   Feeding on plants; herbivorous; as, a phytophagous animal.

Source : WordNet®

phytophagous
     adj : (of animals) feeding on plants [syn: {plant-eating(a)}, {phytophagic},
            {phytophilous}]