A moth of the family Tortricidae; a tortricid.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "tortrix" in a sentence
"The green oak tortrix moth – whose caterpillars race to consume the soft, pale greenery of the young oak leaves."
"Oak tortrix (fat, green, black-spotted) and mottled umber caterpillars (black, brown and yellow mottled) are abundant."