Beetles Research Paper

Beetles have been around for over 270 million years and are one of the most diverse insects to roam the Earth and come in all shapes, sizes and colors. There are 350,000 different species of beetles throughout the world and more yet to be discovered. They make up for twenty-five percent of all living things; There are so many of them because of their ability to adapt to any type of environment and live in almost every habitat except for polar regions or the ocean. Beetles are usually around habitats that are especially dry. They got their name Coleoptera from the Greek words ‘koleos’ which means sheath or shield because of their hard exoskeleton and ‘ptera’ which means wings. The order Coleoptera can be distinguished by a variety of things. One key point that all other insects do not have is a hardened forewings called Elytra. The mouthparts of Coleoptera are mandibulate and used for biting and chowing. coleoptera will have antennae present in various structures. The eye for Coleoptera is compound but will not
Larvae in some species of coleoptera are labeled as grubs, wireworms and rootworms. Often the eggs of coleoptera are laid on or are near a food source. As the female lays her eggs she uses ovipositor which is used to place the eggs into the right position.It will take approximitly three weeks for the eggs to hatch. Eggs that are hatched will depend on the species but after they hatch the larvae goes through stages called instar. The coleoptera larvae only have three stages so they will molt twice in the first and second stage.In the thrid step they will stay about a year fattening up. In the pupation stage after it’s fully grown it will stop eating and go in the soil where it will make a cocoon. It well molt going through metamorphosis this cocoon is held together by special larvae secretions and it is lined in with their gut content. Finally after a couple of months it will emerge and fly into the