Entomology is the branch of science which focuses on insect specimen in a simpler form, Entomology is the scientific study of insects. A scientist who practices the study of entomology is called an entomologist.
Entomologists are often found at universities and they are mostly occupied with the study of economically inportant insects, because it is easier to get funding for research into plague species or honey-producing bees or textile producing silkworms than for a harmless little beetle that just chews some dead wood in the forest. There are over millions of specimens out there and even more to be discovered, A gentle note, that entomology can differ as well, or we can say that entomology can also focus on certain insect behaviors that may vary in every different species of arthropods insect behaviors can also be difficult under direct observations, Insect behaviours depict their survival and regular habits. while on the other hand we have forensic entomology which focuses on solving crimes by studying the insects found on dead bodies such as corpse flies, maggots and other insects found during the seen of crime.
The upside of this is that there is still an awful lot to be discovered about practically any insect you care to name that is not 'economically important'. Generally even very basic information, like what it eats exactly, how many eggs it lays, how it finds a mate, and how long do the several stages of development take, is not known. Listed below are different forms of entomology as it can also be about a particular Family of insects such as Odonata for example which a composition of damselflies & dragonflies, their are a few entomologists that only focus on this field in particular.
Lepidoptera is the Family of insects which is composed of butterflies and moths, for a detailed look into Lepidoptera click here. Lepidopterans have the largest wings as per their body length, Their wings are covered with small pigmented scales to protect their delicate wings from being harmed, these insects follow the complete metamorphosis, in their larval stage, most lepidopterans primarily derive their food from autotrophs (plants) and some species are also considered as an agricultural pest however as they develop into a chrysalis several changes take place once they emerge from their chrysalis they reveal their bright scaly wings that may take some time to dry out. As we've mentioned earlier their young ones are considered as an agricultural pest as for in some species but in their Adult form they help plants reproduce as Lepidopterans are one of the main insects that carry out pollination.
Coleoptera-A brief introduction
If you want a more detailed explanation click here. This family of insects consists of beetles, this family of insects may divide into further groups such as Blattodea, scarabs, ladybugs, rove beetles and many other hence Coleoptera is a superclass of insects. This family of insects is the most numerous one as Half of the insects are entirely belong to Coleoptera. These insects have two sets of wing, one is for flight while the other set of wings is meant to protect the inner whings which is known as an elytra. Some beetles have a polished-metallic elytra which may reflect light. Beetles have adapted themselves to almost every habitat & climatic conditions on earth ranging from the lush green canopy of the amazon basin to the tempting heat of the deserts, beetles have been, in their larval (juvenile) stage they're known as a grub, As a grub beetles normally live undergroung before eventually emerging out as an adult after surpassing the pupal stage where they molt for the final time.
Hymenoptera is the first insect order to exhibit social behaviors, If you want to have a more detailed look into Hymenoptera click here, Hymenoptera is the composition of several species of ants, wasps, honeybees and other insects to exhibit signs of basic intelligence & social cooperation. Ants are small basic insects, there are drone ants, worker ants & a queen, the drones only have one job which is to mate the female worker ants. Ants live in complex system of tunnels intersecting with each other occasionally ending up at the brood chambers, the worker ants will nurture younger ants, the same is applied to honey bees. Honey bees inhabit large structures called hives, bees are the most important insect not only that they give us sweet honey but also help in pollination in fact bees are the main insects to help in pollination! Honey bees are normally docile but species can be vicious & ferocious to humans. Wasps & hornets are much similar to bees, however wasps have been regarded as one of the most dangerous creatures known to cause several deaths per year but that is absolutely nothing compared to hornets, all of these insect use pheromones for pathfinding.
Odonata consists of damselflies & dragonflies for a better deeper look into Odonata click here. These insects have a highly well-adapted flight mechanism (air bone) and are often known for their spectacular appearance, damselflies unlike dragonflies posses a rather slow-flight or fluttering they also keep their wings closed at rest which makes them different from dragonflies, dragonflies on the other hand are incredibly fast-fliers and keep their wings open at rest, Odonata only consists of carnivorous (predatory) insects, as during their juvenile stage of lives, dragonflies & damselflies live underwater and prefer hunting mosquito larva & tadpoles due to their availability there nymphs have a pair of appendages beneath their mouths that can be used as a hammer or to scoop up their prey , Odonata prefers freshwater habitat as a perfect place to repopulate their species further. Damselflies & dragonflies form a vast insect order that have been living since more than 325 million years!! the earliest ancestors of Odonata had a wingspan of an average 70 cm known as "Meganura" and lived before dinosaurs!
consists of flies, mosquitoes, gnats, midges, hoverflies & other winged insects. These insects in their larval stage are known as "maggots" and go through a complete metamorphosis, Diptera consists of several winged insects houseflies being the most commonly well known example of such.