Crickets: Order Orthoptera
Orthopterans have strong back legs and muscles, features that allow them to jump high and far. Their thorax looks like a saddle. The organs on both sides of a grasshopper's first abdominal segment are for hearing, while crickets have the hearing organs on their front legs. Crickets and some grasshoppers rub one front wing against the other to make their well-known rasping sound.
Here is a scanned image of the cricket next to a ruler so you can see the actual size.