phytophaga

from The Century Dictionary.

• noun In entomology:
• noun A very large group of phytophagous tetramerous coleopters, having the head not rostrate, the maxillæ with two lobes, the antennæ linear and of moderate length or short, the body ovate, oblong, or rounded, and the elytra covering the sides of the abdomen.
• noun A division of terebrant hymenopterous insects represented by the families Tenthredinidæ, and Uroceridæ, or the saw-flies and horntails; the Securifera of Latreille: contrasted with Entomophaga and Gallicolæ.
• noun [Used as a singular.] A genus of dipterous insects of the family Tipulidæ.
• noun In ichthyology, a group of cyprinoid fishes.
• noun In mammalogy:
• noun One of two primary groups into which the Edentata or Bruta have been divided, the other being Entomophaga. The Phytophaga are the vegetable-feeders.
• noun One of two prime divisions of placental mammals, including the pachyderms, herbivorous cetaceans (Sirenia), rodents, and ruminants of Cuvier on the one hand, and the edentates of Cuvier (minus the monotremes) on the other hand, together forming two orders, Diplodontia and Aplodontia, collectively contrasted with Zoöphaga.

from the GNU version of the Collaborative International Dictionary of English.

• noun plural (Zoöl.) A division of Hymenoptera; the sawflies.