Saginae

Predatory katydids
File:Saga 2004 7 CB.jpg
Mature Saga pedo
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Orthoptera
Family:	Tettigoniidae
Subfamily:	Saginae Brunner von Wattenwyl, 1878
Genera
Clonia Stål, 1855 Cloniella Peringueyella Saga Charpentier, 1825

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.

Overview

File:Saga 2006 4 CB.jpg

Saga pedo about to oviposit an egg in soil

Members of the Saginae are gracile and elongated in build compared to say, most locusts or crickets, but their four anterior walking legs, as opposed to their two posterior leaping legs, are powerful and lined with spines, mainly along their inner edges. They apply those inner spines in clasping their prey. Some species have spines on the outer surfaces and on the leaping legs as well; those external spines probably are defensive in function. The jaws of Saginae are not spectacular, but are large, powerful, sharp, and businesslike, as befits predators, and the insects do not hesitate to bite when handled.

The Saginae are large insects, some species with a body length of more than 50 mm, not counting the antennae or ovipositor, which are long, typically about as long as the body.

The ovipositor is long and sword-like, and used for oviposition in soil.