Desert Locust solitarious hoppers (wingless nymphs). Hoppers of the solitary phase are
green or brown. They live in Isolation and do not march.
The development from eggs into hoppers (wingless larvae or nymphs) is a
function of temperature. The hopper development period decreases with increasing daily
air temperature. The correlation with air temperature is less clear than with eggs
because the hoppers can control their body temperature to a considerable extent by
basking or seeking shade.