Beetles die on the back of the poison

If we see a beetle or cockroach, still lying on his back, then we conclude that he is dead. So it is, but why it is on the back?

When a dead beetle or cockroach gets on your eyes, it often means that you can see it at home, since it is unlikely you would ever think to look at the bodies of insects on the lawn near. The reason for turning a beetle on its back is to the venom, which poisoned his people. Insecticides disrupt the insect's nervous system, resulting in reduced muscle begin spasms and cramps, which forced a beetle or cockroach fall on his back, legs jerking erratically, before death comes.

Under natural conditions, the insect does not turn to die. However, bugs still common to see dead and lying on his back. This is because they simply turns the wind because they are very light.

via factroom.ru