Its good to know you have interest in these beautiful small creatures . This is known as Thanatosis .Many species of insect, when they feel threatened by a potential predator, will display a behaviour known as thanatosis (or playing dead). The insect will often fall to the ground and tuck in any protruding legs or antennae. The insect will remain like this for some time, even when prodded or poked by the predator. Some time after the predator has lost interest the insect will start moving again and make its escape.
And your pics are always amazing ❤️