(of an animal) feeding on a limited variety of foods (opposed to euryphagous).
Origin of stenophagous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
(of animals) feeding on a single type or limited variety of food
Word Origin for stenophagous
C17: from steno- + -phagous (via Latin from Greek phagos eating)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012