Crickets chirp at different rates depending on their species and the temperature of their environment. Most species chirp at higher rates the higher the temperature is (approx. 60 chirps a minute at 13ºC in one common species; each species has its own rate). The relationship between temperature and the rate of chirping is known as Dolbear's Law. In fact, according to this law, it is possible to calculate the temperature in Fahrenheit by adding 39 to the number of chirps produced in 15 seconds by the snowy tree cricket common in the United States. To hear the mating call of other crickets, a cricket has ears located on its knees, just below the joint of the front legs. http://www.answers.com/topic/cricket
The chirp is made by rubbing their left forewing against their right forewing.
Crickets hear though their knees ! (Yeah - strange but TRUE !)
yes, crickets have their ears in their knees, so they hear with their legs.
Grasshoppers hear through their knees
There are no insects with eyes on their knees. However, there are many kinds of insects with ears on their knees. Some examples include crickets and grasshoppers.
Crickets sense vibration and air movement through hairs on their rear legs.
Their stomach.
they rub their knees together they use this as a mating call
they rub their knees together they use this as a mating call
their legs
They have ears on their "knees" or where they bend their hind legs.
so that they can hear the predetors