Pterophylla camellifolia, the common true katydid, is a common North American insect in the family Tettigoniidae (katydids).

Within the Tettigoniidae, it belongs to the subfamily Pseudophyllinae (true katydids).

[1][2][3] The loud, rasping, three-pulsed song, rendered "ka-ty-did", of the male of the nominate northern subspecies is the source of the vernacular name "katydid” as applied to any tettigoniid.

[4] It is a nearly flightless species that, in contrast with other katydids, often walks, runs, or hops rather than leaping or flying.

[5] It lives in the canopy of deciduous trees, where it feeds on the foliage.