Nezara viridula (Linnaeus) morphs from India and the United States were studied in a laboratory comparison of feeding preferences for pods of soybeans, Glycine max, and green beans, Phaseolus vulgaris. Adults of a morph from the U.S. apparently selected pods at random, while three sympatric morphs from India generally preferred green bean pods.
DeWitt, Jerald R. and Armbrust, Edward J.
"Feeding Preference Studies of Adult Nezara Viridula (Hemiptera: Pentatomidae) Morphs from India and the United States,"
The Great Lakes Entomologist, vol 11
Available at: https://scholar.valpo.edu/tgle/vol11/iss1/9