Introduction as many as there is?
what is a beetle?
where are and how it live?
are all equal?.Systematic
Methods of study

l you coleoptera is the major animal group of our planet in number of species and it occupy practically all the ecosystems on land firm ; They in habit tropical forests, jungles, mountains, costs, deserts, steppes , caves etcetera.... Their morphological diversity and the adaptation capacity is extraordinary but also in their feeding , when exploiting all the unimaginables resources to their reach. A theological asked to J.B.S. Haldane, one of the evolutionary biologists elderses of principleses of century, what could be said of the nature of the creator by following the study of their creation , and this one responded:" an inordate fondness for beetles" ( Hutchinson, 1959 ).

At present it is unknown the number of species ;So much they describe them exactly for the science how those who really it inhabit the planet. They estimate approximate, so some 350.000 species have been describe according to the last catalog and the total number real of species estimated varied according to the authors between 1 and more than 10 millions. The Iberian fauna account with some 10.000 species known. In order that do each other an idea of these numbers for comparison; the total number of birds understanded the whole world doesn't reach to 10.000 Y watch that there is species of birds!!.

A beetle or coleoptera are an insect (Insect class) and belongs to the group (order: Coleoptera ) more numerous in this one. Briefly it characterizes to him for having:

* An external in form skeleton of hardened called cuticle exoskeleton
* Divided body in middlings, thorax and abdomen ( as the others insects )
* mouth with getting ready masticator( sometimes modified )
* three paired of legs in the thorax;one for each thoracic segment (adult state )

* two paired of wingses; the first hardened couple is external like case called elytra and protects a second paired membranous
* development postembryonic with a complicated metamorphosis

It can be detail much more, but this is the more representative and simplified.

Summarizing , the beetles settle all the habitats of the terrestrial surface that unite some minims agree to subsist: forests, meadowlands, mountains, swamps, open spaces ,deserts, tropical steppes, jungles, water stagnant and in motion ( except open sea ), also near the man: houses, wine vaults, granaries and stables, storerooms and deposits, textile stores,medicines, ,gardens and agricultural cultivations. Also live together with others animals in nests of ants, burrows of mammals, nests of birds etc... until in the coat and taps of animals as well as in his corpses and excrements,organic matter in decomposition etc... As you see they are natural born survivors !! .

According to the distribution that it occupy distinguish to him these 6 zoogeographic regions:

1. Paleartic region: temperature zone of Eurasia from the Atlantic thing to the pacific thing. It includes Japan , North of Africa and part of the Arabian peninsula.
2. Región Neártica: be accustomed, south of Canada and Mexico.

3. Región Neotropical: Central America and of the south.
4. African or Ethiopian region: southwards of the Sáhara and Arabia.

5.Región Indomalaya: Indian, Ceylon , South of China, Indo-Chinese and Indonesian.

6. Australian region: Australia, new Celanda, Tasmanian and Oceania. (MAP)

The Iberian fauna of coleoptera belongs to the Mediterranea subregión in the Paleartic region.There are little species that have a distribution very wide and occupy almost the whole planet. It are the calls species cosmopolitans, helped in their expansion for the man through the commerce and the traffic ( p.ej the Colorado beetle).

The adults appear in spring and summer in their majority, the it is necessary to pass the winter with his function vital reduced to the minimum ( hibernation ) hidings and protected in dens below trunks, stones, etcetera... . According to the origin of the food it can classify them in adephaga and polyphaga . The first concern searches for of his imprisoned and are carnivorous, normally it hunt imprisoned acclamations although sometimes accept meat of animals already dead persons or even there is some carabids that take mature fruit juices. The polyphagian normally eat food of vegetable origin coolness as tissues of leaves, tubercles and roots , fruits, abilitieses of the flowers etc..but the feeding is very varied: there is it species that live at the cost of excrements,corpses, sea anemones and vegetable insolent remainses, until have adapted to new foods like the dry woods worked for the man ( furnish, brainses of boat...), packed medicines and foods( flour, tea, mentions..) or they eat leather, membranes , I seed stored and until our collections of insects!! .