Larvae of butterflies and moths usually found feeding on a single species of plants. Other species may be more wide-ranging, especially those that lay eggs on widely distributed or weedy plants. Butterflies and moths are found in a wide variety of habits, from tundra to rain forest and from below sea level to nearly 6000 m ( nearly 20,000 ft) in elevation. Continual good weather and ample resources allow for rapid larval development and long adult life , and as many as 15 generations may occur in one year.
