Under good conditions the blind and wingless form predominates, but if their surroundings become too tough, they produce offspring which develop into winged adults with eyes.

The new vegetation provides food for the newly hatched locusts and provides them with shelter as they develop into winged adults.

The nymphs moult five times before becoming winged adults.

A similar apparatus is found in cicadas and ground dwelling beetles, so it may be that the winged adults dig in soil.

A complete metamorphosis takes place when a pupa emerges as a winged adult.

The caddis larva is even more homely than the winged adult.

When the larvae or nymphs of these insects swim to the surface of a stream and emerge as winged adults they are said to hatch.

The gemlike chrysalides are as breathtaking as the winged adults.

Then, on some mysterious cue, they emerge simultaneously from the soil and change into winged adults.

Then the dark corridors of the colony are filled with rustling hordes of young winged adults.