ORTHOPTERA

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ORTHOPTERA (grasshoppers, crickets, katydids)
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Characteristics of Orthoptera
1. Chewing Mouthparts
2. Saltatorial Hind Legs
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Two Suborders of Orthoptera
1. Caelifera - Grasshoppers

• diurnal, jumping
• short antennae
• terrestrial (not arboreal)

2. Ensifera - katydids, crickets

• nocturnal, walking
• long antennae
• arboreal

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Economic Importance
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Sound Production
Caelifera
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Sound Production
Ensifera
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Sound Production
Ensifera
file
scraper
sound radiation
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Sound Reception
Ensifera
Caelifera
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Orthoptera - Camouflage
Caelifera
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Orthoptera - Camouflage
Ensifera
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Some representative Orthoptera
Ensifera
Stenopalmatidae - Jerusalem cricket wetas
Tettigoniidae - katydids
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Some representative Orthoptera
Ensifera
Hagloidea - grigs, Cyphoderris
Gryllidae - crickets, mole crickets
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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
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