METAMORPHOSIS OF THE INSECTS.

   The insects are fascinating organisms that astonish and surprise the man, by their different forms, size, color, like also by the physical, morphologic adaptations and reproductive they are making to cope with environmental changes over time. One of these strategies that they adopt the insects is the metamorphosis, a change of form through different cycles during its life. The stages or cycles through which they pass the insects during the metamorphosis are: egg, larvae, nymph and adult.

The insects adopt colors and forms to be camouflaged in the environment.

    In occasions the changes they are very small among from the cycle the young to the adult, principally the significant change is the size. To this phenomenon he is known as simple metamorphosis and is given, between others, in bedbug and louses of the plants. In other cases, the young individuals and the adults are very different, both in form and in size and habits. This is known as complete metamorphosis and can be observed in the flies, mosquitos and butterflies.

    In the easy metamorphosis the insects that have young individuals called nymphs are very similar to the adults. If they are insects that have wings are developed externally during the immature stages, there is no stage of pustule before reaching the final stature.
 

The adaptability to the way of the insects constitutes a benefit to increase his reproduction.

    On the contrary, in the complete metamorphosis, it has an intermediate stadium before the shedding that is the pustule or nymph in whom, the normally immobile insect, it has an important trasformation towards his adult form, if they belong to a species with wings are developed internally. They have habits and form of life in the larval cycle totally different from the adult stage. With this mechanism they are in the habit of avoiding different adversities as the drought, the heat, the cold, this needs a few internal changes in these very significant insects. During the metamorphosis, these changes depend on the activity on these organs during the different cycles. This way, the heart, the nervous system and the tracheal system change very little.Others, present of rudimentary way in the larva or nonexistent, are developed in pupa to appear in the adult individuals; it is the case of the reproductive apparatus.

When the insects adapt to the way, they procreate with major intensity and turn into plagues.

   The advantage of the metamorphosis allows the insects to live in conditions and  different atmospheres and for colonizing diverse habitat, allowing to evade some adverse situations. The larvaes do not have very much movement and to dedicate his time to feed accumulating the maximum energy, on the other hand the adults can move for very much greater areas, this determines that there is more difficult the control of plagues and the elimination of these insects in the adult state.