| Plagiostira | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | Pancrustacea |
| Class: | Insecta |
| Order: | Orthoptera |
| Suborder: | Ensifera |
| Family: | Tettigoniidae |
| Subfamily: | Tettigoniinae |
| Tribe: | Plagiostirini Storozhenko, 1994 |
| Genus: | Plagiostira Scudder, 1876 |
Plagiostira is a North American genus of shield-backed katydids in the family Tettigoniidae. There are at least three described species in Plagiostira. It is the only genus in the monotypic tribe Plagiostirini Storozhenko, 1994.