Orthoptera insects: description, characteristics, types and classification

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2018-03-23 14:44:12

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The Class insects, order Orthoptera comprise nearly 25 thousand species, 651 of them belong to the fossil species. They belong to the order novacrylic and have an incomplete transformation. This means that the larvae after emergence are similar in appearance to adult insects, i.e. they have very complex eyes, similar structure of the oral organs and the rudiments of the future wings. The scientific name of these larvae-nymphs. Let's have a look what kind of Orthoptera insects are to us most often, and what we know about them.

orthopterous insect

Structure

The order Orthoptera in Latin is called Orthoptera. Sometimes called jumping Orthoptera. The squad is divided into two isolated subspecies: short-and long mustache.

Most of all orthopterous insects have a similar body structure. It is elongated, with a fairly large head and developed eyes. Chewing mouthparts are often directed downwards, but in some species (crickets) – forward. On the front of the head located antennae of different shapes.

The Chest and the back is divided into three segments. The pronotum has well developed lateral lobes, not covering the head. The middle and rear sections of the back are combined and delimited by a sharp seams. The same applies to the middle and posterior chest.

Orthoptera insects have the characteristic shape of the hind legs. They are elongated compared to the front and have the bulge in the hips that provides the ability to jump. However, there are species that have lost the ability to jump. At the rear the calves of the legs are a large number of spikes, and at the end – a few spurs. Fore and middle legs are designed for running, digging or grasping movements.

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orthopterous insect

An Insect of the order Orthoptera has a dense elytra leathery structure with lots of veins. They are the basic part of a sound apparatus. The wings of this insect are fan-shaped. The rear part of the abdomen ends in anal plate on the last sternite which the male genitals are located, and females – the ovipositor.

Classification

Scientists are divided into the following orders of insects: Tarakanova, Orthoptera, earwigs and so on. They are all insects with incomplete metamorphosis. Apparently, this similarity, scientists need to combine them into one unit. For some time entomologists have considered that the Orthoptera insects are included in the superorder primarilary and include locusts, grasshoppers, grasshoppers, mole crickets, earwigs, cockroaches and mantids. This statement was considered true until the end of the last century. But today, after a lot of observations and comparisons, in the superorder primarysource include Orthoptera, that is, grasshoppers, crickets, mole crickets, locusts, and a separate detachment – earwigs.

Old friend – grasshopper

I Can imagine that the familiar from childhood, grasshopper, refers to one of the oldest groups of insects on Earth? Uncomplicated "warbling" the little musician heard for so long that it is hard to imagine. Flying grasshoppers do not know, but due to the strong hopping hind legs, very far transported, helping himself with a thin broad wings. With some stretching, jumping these insects can still be equated to the flight. An interesting feature of the grasshopper – it makes sounds and hears their feet!

insects of the order Orthoptera

Hard to imagine, but the ear of the grasshopper is located on the front legs and arranged it about the same as a human. The thin membrane vibrates under the action of sound, these fluctuations in catch of sensitive nervous tissue, process them and send to the brain. Specific issue Trilling grasshopper legs and elytra. The males have “mirror” and “bow”, located on the right and left upper wing case. Crossing legs and vibrating the wings, the grasshopper makes chirping that defines the boundaries of its territory and attracts females.

Cricket

Cricket and mole cricket – omnivorous insects. However, they give preference to plant food.

Crickets are known for their evening “singing”. Often these insects live in houses, finding a dark secluded place. But in nature they dig a small burrow for the winter. Cricket may emit different audible signals, one intended for the perception of females and deter other competitors.

insect orders Orthoptera earwigs Tarakanova

Mole cricket

The mole cricket, too, is digging underground passages. It generally leads an underground life, finding myself here not only food but also shelter. Hind legs of these insects are not so well developed as in grasshoppers and crickets, but the front have enough power to dig complex underground passages.

At night, mole crickets can come to the surface. These insects can fly, but not well. The wings of mole crickets are formed in such a manner as not to interfere with it to move underground back and forth.

Typically, the mole crickets prefer to live floodplains, but increasingly they are found in the gardens and in the gardens. For truckers an infestation of mole crickets can be a real disaster.

insect orders tarakanovo Orthoptera earwigs mayflies

Earwigs

As already mentioned, earwigs –a separate unit in the superorder primarylabel. It is a small insect with short wings and long body. Different types of earwigs have the ability to fly. Someone doesn't fly, someone flies, but bad.

Earwigs – omnivorous, historyline insects. The favorite place of settlement for them – the area bordering human habitation. Insects cause damage to truck crops, but also protect them from aphids and spider mites.

Earwigs are very fond of garden flowers. They destroy the roses, peonies, Phlox, asters, but are happy to eat vegetables and root vegetables, will not abandon the young seedlings and ornamental plantings.

class insects order Orthoptera

Scientists have described more than 1300 species of these insects, about twenty of them occur in our latitudes. In addition to representatives of living the entire gardening season, and there are earwigs mayflies whose life flies in 24 hours.

Draw conclusions

Insect orders - tarakanovo, Orthoptera, earwigs, mayflies – very interesting to explore. Each of them has its own characteristics. Someone sings in the evenings, the recruiting songs for females, someone can completely destroy crops. Understanding their habits, you can understand how dangerous it is for your home or garden. This will help to take action in the fight against pests of the garden plot.


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Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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