The stick insects are frequently designated as the 'walking sticks'. They are herbivorous and prefer to feed on leafs of plants only. they may be green or white in color small to large in size. They prefer to live in a humid environment. Their life stage includes: egg, larvae and adults. Their mechanism for defense is very fantastic that is why they are called as 'camouflage masters'. Sexes are separate. Females are larger in size and males are smaller. females can glide only while males can fly.