(grasshoppers, crickets, katydids)

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(grasshoppers, crickets, katydids) ORTHOPTERA (grasshoppers, crickets, katydids)

Hexapod Orders Orthoptera Ortho - straight, ptera - wing Number of Species 22,000 Common names Grasshoppers, locusts, crickets, katydids Typical habitats - vegetation, worldwide Distinguishing characteristics ovipositor saltatorial hind legs Other features -first group to use sound in communication

Characteristics of Orthoptera 1. Chewing Mouthparts 2. Saltatorial Hind Legs

Two Suborders of Orthoptera 1. Caelifera - Grasshoppers diurnal, jumping short antennae terrestrial (not arboreal) 2. Ensifera - katydids, crickets nocturnal, walking long antennae arboreal

Economic Importance

Sound Production Caelifera

Sound Production Ensifera

Sound Production Ensifera file scraper sound radiation

Sound Reception Ensifera Caelifera

Orthoptera - Camouflage Caelifera

Orthoptera - Camouflage Ensifera

Some representative Orthoptera Ensifera Stenopalmatidae - Jerusalem cricket & wetas Tettigoniidae - katydids

Some representative Orthoptera Ensifera Hagloidea - grigs, Cyphoderris Gryllidae - crickets, mole crickets

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