insects example sentences. These three authors definitely separated the Arachnida, Crustacea and Myriapoda as classes distinct from the Insecta (see Hexapoda). When these are excited by the settling of an insect on the leaf they slowly bend over and imprison the intruder, which is detained there meanwhile by a sticky excretion poured out by the glands. The object of these movements will be appreciated when it is remembered that, if the pollen-masses retained the original direction they had in the anther in which they were formed, they would, when transported by the insect to another flower, merely come in contact with the anther of that flower, where of course they would be of no use; but, owing to the divergences and flexions above alluded to, the pollen-masses come to be so placed that, when transplanted to another flower of the same species, they come in contact with the stigma and so effect the fertilization of that flower. Distant, A Naturalist in the Transvaal (1892), and Insecta transvaaliensia (1900 seq. Step 4: Let students create their insects. Swammerdam's Biblia naturae, issued in 1737, fifty years after its author's death, and containing observations on the structure and lifehistory of a series of insect types. Punctuation grade-1. insect visits in nearly Soo species of plants. The structural modifications required to convert a spider into the image of an ant are of a more complicated character than those that serve the same purpose in an insect. It is different in its details in different insects and in different stages of the life of the same insect. Does normal UV light insect zappers work or could they be adapted? Mosquitoes and sand-flies are the chief insect pests, and in some districts are very troublesome. Below it is the conducting surface (B) of glassy epidermal cells, with short downward-directed points, which facilitate the descent, but impede the ascent of an insect. STICK - INSECT, the name given to certain orthopterous insects of the family Phasmidae, of extremely variable form and size, and deriving their name from a resemblance to the branches and twigs of the trees in which they live and feed. Narrowing of the posterior portions of the spider's cephalothorax and sometimes of the anterior end of the abdomen reproduces the slender waist of the ant, and frequently transverse bands of hairs represent the segmentation of this region in the insect. An example of the latter occurs in Singapore where the vicious red spinning-ant (Oecophylla smaragdina) is mimicked by the larva of a Noctuid moth and by spiders belonging to two distinct families, namely, Saltiicus plataleoides (Salticidae) and Amyciaea forticeps (Thomisidae), there being no reason to suppose that either the moth larva or the spiders are protected forms. They are distributed thus: Vertebrata, 8 species; Insecta, 17; Arachnida, 12; Myriapoda, 2; Crustacea, 5; Vermes, 3; Mollusca, 1. Copyright © 2020 LoveToKnow. The escape of the insect takes place on the spontaneous bursting of the walls of the vesicle, probably when, after viviparous (thelytokous) reproduction for several generations, male winged insects are developed. buffalo etc. Have 3 body parts: head, thorax, and abdomen, Have 2 eyes and 2 antennas that help the insect smell, taste, and hear, Middle section (thorax) has powerful muscles that operate wings and six legs, Back section (abdomen) expands when the insect feeds, Only have 2 body parts: abdomen and cephalothorax (head and thorax together), Growing from the cephalothorax are 8 legs, Have 8 eyes and 2 pedipalps — leg-like body parts that touch and taste — instead of antennae. What made you want to look up insect? The hive bee is, moreover, the only insect known to be capable of domestication, so far as labouring under the direct control of the bee-master is concerned, its habits being admirably adapted for embodying human methods of working for profit in our present-day life. The mature females lay their eggs in the water, and the newly-hatched larvae provide themselves with cases made of various particles such as grains of sand, pieces of wood or leaves stuck together with silk secreted from the salivary glands of the insect. The tightness of the weave makes the smock impervious to insect bites. Mosquitoes go through four phases: (1) ovum, (2) larva, (3) nympha, (4) complete insect. Boron compounds are also effective against all common causes of insect attack in timber (including termites! Send us feedback. Feeds on tubers, seeds, bulbs, insects and insect larvae. Mimetic aggregations of species similar to those mentioned above have been found in other countries; but the instances cited are sufficient to show how widespread are the influences of mimicry and how profoundly it has modified the insect fauna of various parts of the world. As, moreover, the wings travel at a much higher speed than any wind that blows, they are superior to and control the wind; they enable the insect to dart through the wind in whatever direction it pleases. A director of agriculture was appointed in 1896, and leaflets are issued pointing out improvements within the means of the villager, and how to deal with plant diseases and insect pests. Though Riley was especially interested in the bearings of insect life on agriculture and industry - economic entomology (q. C. Piepers; the bearing of insect habits on theories of selection and use-inheritance by A. References to the works of the above authors, and to many others, will be found under HEXAPODA and the special articles on various insect orders. A rotting log can become a world of insect life and a home for beetles, including the increasingly uncommon stag beetle. Most remarkable in this order is the structure of the feet; there are never more than two tarsal segments, and the claws, usually so conspicuous in insect feet, are reduced (fig. 2. Linking and action verbs grade-1. are responsible for getting their own food and water are called wild animal. The origin of insect wings remains, therefore, a mystery, deepened by the difficulty of imagining any probable use for thoracic outgrowths, comparable to the wingrudiments of the Exopterygota, in the early stages of their evolution. Step 4: Ask students to share what they know about insects. He endeavoured to construct an artificial insect on the plan advocated by Borelli, Strauss-Diirckheim and Chabrier, but signally failed, his insect never having been able to lift more than a third of its own weight. The irritation set up by the hatching egg and its resulting larva appears to be the stimulus to development, and net a poison or enzyme injected by the insect. – Man at sea is an insect on a splinter, now engulfed, now scared to death. Large pits are dug across the line of advance of these great insect armies to stop them when in the larval or wingless stage, and even huge bonfires are lighted to check their flight when adult. cocoons created by the ever-present insect inhabitants. The habit of some genera is to catch the prey before making their tunnel, but more frequently the insect digs her nest, and then hunts for prey to put into it. whinge want everything to be right and can be heard whinging about everything from sunburn and insect bites to the foreign food. Many animals such as ox and bullock are As is the case with other water-bugs, this insect is predaceous and feeds upon aquatic grubs or worms. The ovipositor is long and prominent, enabling the female insect to lay her eggs in the wood of trees, where the white larvae, whose legs are excessively short, tunnel and feed. As a typical instance we may take the chapter on the ant-lion - not the insect, but an imaginary creature suggested by Job. Test Your Knowledge - and learn some interesting things along the way. Example includes We supply a variety of insect and mosquito repellents and killers. Insect life is peculiarly abundant; the red stump-like ant-hills are a feature in every landscape, and bees used to be kept in all the mission villages. Step 3: Lay four hula hoops on the classroom floor (or create four rings of string) and place a word card in each. Cut out the pictures and hide them throughout the classroom. Aphidesand may be easily penetrated by certain Fungi such as Peziza, Nectria; and when thus attacked, the repeated conflicts between the cambium and callus, on the one hand, trying to heal over the wound, and the insect or Fungus, on the other, destroying the new tissues as they are formed, results in irregular growths; the still uninjured cambium area goes on thickening the branch, the dead parts, of course, remain unthickened, and the portion in which the Fungus is at work may for the time being grow more rapidly. The Difference Between 'Bug,' 'Insect,'... A bug is an insect and so is a beetle, so what's an insect? When a fly is captured, the viscid excretion becomes strongly acid and the naturally incurved margins of the leaf curve still further inwards, rendering contact between the insect and the leaf-surface more complete. With this unit on the life cycles and fascinating characteristics of insects, kids create their own butterfly figures, engage in dramatic play, and more. The most probable supposition is that the cup is simply an excrescence or "enation" from the mouth of the flower-tube, and is connected with the fertilization of the flowers by insect agency. The trail of the marble creates a web painting on which the spider is mounted. It has been previously remarked that the phenomena of holometabolism are connected with the development of wings inside the body (except in the case of the fleas, where there are no wings in the perfect insect). The tough but flexible coarse grey paper (German Fliesspapier), upon which on the Continent specimens are commonly fixed by gummed strips of the same, is less hygroscopic than ordinary cartridge paper, but has the disadvantage of affording harbourage in the inequalities of its surface to a minute insect, Atropos pulsatoria, which commits great havoc in damp specimens, and which, even if noticed, cannot be dislodged without difficulty. The insect, &c., is attracted by the colour and scent of the flower, and frequently also by honey which is secreted in some part of the flower. Among the vegetable-feeding chafers we usually find that while the perfect insect devours leaves, the larva lives underground and feeds on roots. When removed, apply antiseptic ointment or powder but monitor daily for contamination or insect infestation.

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