Mosquitoes were once viewed merely as a nuisance because of the itching and irritation that resulted from their bites. In the early 1900s, however, they were recognized as carriers of yellow fever, malaria, and other diseases. Bees are flying insects that are related to wasps, hornets, and ants. The thorax in turn has three segments, each with a pair of legs. A tiny waist connects the thorax and abdomen WASP .
Most people think of wasps only as bugs with bad tempers and sharp stings.
Actually, wasps exhibit remarkably sophisticated behavior and are often helpful, especially to farmers, because they help to check the population of other insects that may be harmful to crops. The many species that feed on nectar travel from flower to flower just as bees do and so are significant as pollinators of various plants. In spite of their reputation, wasps sting humans only when threatened, frightened, or provoked. There are more species of beetles than of any other kind of insect. They constitute the largest order of insects Coleoptera which includes almost one third of a million recognized species.