The common characteristic of these groups their enlarged back legs that they use for jumping. They all have chewing mouthparts too. Most species have leathery front wings, and use their back wings for flying.
Species in this group of insects occur on every continent except Antarctica. There are thousands of species in these groups.
These insects occur in just about all the habitats on earth, except in the extreme cold of ice sheets and high mountaintops. There are even some that swim and eat plants underwater!
Orthopterans are hemimetabolous. Females lay eggs, and the babies that hatch out are called nymphs. They look a lot like the adults. As they grow they shed their exoskeleton (usually 5 or 6 times). The last time they shed they emerge as adults, and not until then do they have wings. In temperate climates with cold winters, it is usually the egg stage that survives the winter, though a few species survive the winter as nymphs or adults.