Beetles are insects that form the order Coleoptera (/koʊliːˈɒptərə/), in the superorder Endopterygota. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 described species, is the largest of all orders, constituting almost 40% of described insects and 25% of all known animal life-forms; new species are discovered frequently, with estimates suggesting that there are between 0.9 and 2.1 million total species. Found in almost every habitat except the sea and the polar regions, they interact with their ecosystems in several ways: beetles often feed on plants and fungi, break down animal and plant debris, and eat other invertebrates. Some species are serious agricultural pests, such as the Colorado potato beetle, while others such as Coccinellidae (ladybirds or ladybugs) eat aphids, scale insects, thrips, and other plant-sucking insects that damage crops.
Beetles typically have a particularly hard exoskeleton including the elytra, though some such as the rove beetles have very short elytra while blister beetles have softer elytra. The general anatomy of a beetle is quite uniform and typical of insects, although there are several examples of novelty, such as adaptations in water beetles which trap air bubbles under the elytra for use while diving. Beetles are endopterygotes, which means that they undergo complete metamorphosis, with a series of conspicuous and relatively abrupt changes in body structure between hatching and becoming adult after a relatively immobile pupal stage.
Beetles are found in almost every habitat except the sea and the polar regions. They interact with their ecosystems in several ways: Beetles often feed on plants and fungi, break down animal and plant debris, and eat other invertebrates. Many Beetles enjoy human gardens, since gardens are typically moist and filled with easy sources of food. Some, like the flour and grain Beetles attack food products in homes. They also damage food in production facilities and stores.
When a bite occurs, the blister Beetles releases cantharidin, a poisonous chemical that causes human skin to blister. The blistering of the skin disappears on it own over time. It’s rare, but blister Beetles bites can be fatal to humans if a person experiences a severe allergic reaction.
CONTROL AND MANAGEMENT MEASURES:
Good sanitation practices and removing foods that support Beetles development and reproduction can be accomplished with a vacuum or another form of mechanical removal.
Pheromone based traps can be used for identification. Insect Growth Regulators (IGR) can be used to control Beetles.