from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Feeding on a restricted range of food substances, especially a limited number of plants. Used chiefly of insects.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. that feed on a restricted range of food
Most phytophagous insects are diet specialists, i.e., they feed on one or a few plant species that are closely related (monophagous, host plants within one plant genus, or oligophagous, host plants within one family) .
Y. cagnagellus may have arisen in this ancestor, allowing it to radiate on Rosaceae The only oligophagous species,
Yponomeuta padellus and four of Y. cagnagellus from different localities and (in the case of the oligophagous