Blattodea is an order of insects that contains cockroaches and termites. There are approximately 4,600 species of cockroach and about 3,000 species of termite. Regrettably most people seem to regard all cockroaches as offensive and destructive. However, this reputation is deserved by less than 30 species as the vast majority is secretive and do not associate with humankind. As a group they exhibit a remarkable diversity of size, form, coloration and behavior and occupy a very wide range of habitats from caves to mountains, from rainforests to deserts. (Taken from Cockroach Species File, ITIS)