What is "saginae"

The Saginae, commonly known as the predatory katydids or predatory bush-crickets, is a subfamily of the family Tettigoniidae (the katydids, long-horned grasshoppers or bush-crickets). The Saginae are specialist carnivores, which is unusual among the Orthoptera. Their specialist carnivory and appropriately adapted digestive tracts even were regarded as unique in the order Orthoptera, but at least some members of two other subfamilies, the Austrosaginae and Listroscelidinae are partly or completely predatory as well, and until recently those subfamilies were included in the Saginae.