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How can crickets be distinguished from grasshoppers?

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Meadow grasshopper — Orthoptera A colorful meadow grasshopper (*Chorthippus parallelus*) on a wooden fence.

Although grasshoppers and crickets are both members of the order Orthoptera, they can be distinguished by several physical and behavioral characteristics:

Antennae: Crickets typically possess much longer antennae compared to grasshoppers.1
Hearing Organs: The tympanal organs (ears) are located on the abdomen near the thorax in grasshoppers, whereas in crickets, they are found on the front legs.12
Sound Production: Grasshoppers often produce sound by rubbing their hind legs against their wings, while crickets produce their characteristic chirping sounds by rubbing their wings together.12
Activity Patterns: Grasshoppers are primarily diurnal (active during the day), while most crickets are nocturnal.13

These insects are classified into different suborders: crickets belong to the suborder Ensifera, while grasshoppers belong to the suborder Caelifera.4