August 2017
Encyclopedia of Animals;8/1/2017, p1
Reference Entry
The two most common kinds of katydids are the northern true katydid, Pterophylla camellifolia, and Microcentrum retinerve. The male northern true katydid's song includes the sounds "Katy did," "she did," and "Katy didn't." Although not all katydids make these sounds, all share this name.


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