123, &c.; Albert Muller, " British Gall Insects," The Entomologist's Annual for 1872, pp. your own Pins on Pinterest In some of these insects the wings are so small as to be useless for flight, being modified altogether for stridulation. Typical dipterous insects (flies) closely resemble in general form aculeate Hymenoptera belonging to the families of bees and wasps. Needham, &c., Aquatic Insects in New York State (Albany, N.Y., 1903); F. The Egyptians did not stop at the mummification of the human body; sacred animals, birds, reptiles, fishes, and even insects were treated in a similar way, and the meat offerings deposited with the wealthy dead were likewise "preserved.". If we admit that the larva has, in the phylogeny of insects, gradually diverged from the imago, and if we recollect that in the ontogeny the larva has always to become the imago (and of course still does so) notwithstanding the increased difficulty of the transformation, we cannot but recognize that a period of helplessness in which the transformation may take place is to be expected. Insects, are a class in the phylum Arthropoda. The males are very small, free-flying insects with the prothorax, mesothorax and elytra greatly reduced, the latter appearing as little, twisted strips, while the metathorax is relatively large, with its wings broad and capable of longitudinal folding. In the vast majority of winged insects the terminal part of the genital system (vagina and ductus ejaculatorius) is unpaired and ectodermal. ... More than 1 million of the categorized 2 million species are arthropods (insects/spiders). Wingless insects, such as spring-tails and lice, make their appearance in the form of miniature adults. the Dermaptera and agree with the vast majority of winged insects - are the absence of distinct maxillulae and the presence of an unpaired ectodermal tube as the terminal region of the genital system in both sexes. As previously mentioned, a pair of minute jaws - the maxillulae- are present in the lowest order of insects, between the mandibles and the first maxillae. Students dive deep into learning about insects with these close reading and writing response activities. Like the perfect insects, they are predaceous, feeding on plant-lice (Aphidae) and scale insects (Coccidae). Step 2:Explain to students that they will be studying insects, bugs, and spiders, and that bugs are insects with mouthparts that pierce and suck. Example sentences with the word insects. Produce and expand sentences grade-2. Morgan sums up a discussion on Lubbock's experiments in which the ants failed to utilize particles of earth for bridge-making, with the suggestive remark that " What these valuable experiments seem to show is that the ant, probably the most intelligent of all insects, has no claim to be regarded as a rational being.". The wingless forms in question are always allied to winged forms, and there is every reason to believe that they have been really derived from winged forms. Example includes lady bird, cockroach, housefly, butterfly, grasshopper etc. In recent years classifications in part agreeing with the older schemes but largely original, in accord with researches on the comparative anatomy of the insects, have been put forward. Bees, spiders, and ladybugs are examples of insects. The most able exponent of this subject in Great Britain was John Curtis, whose treatise on Farm Insects, published in 1860, is still the standard British work dealing with the insect foes of corn, roots, grass and stored corn. The passage at first runs obliquely upwards in the bank, sometimes to a distance of as much as 50 ft., and expands at its termination into a cavity, the floor of which is lined with dried grass and leaves, and in which, it is said, the eggs are laid' and the young brought up. See Neuroptera, among which these insects were formerly comprised. They are more than half of all known living species. (For the habits of these insects see Wasp.) Much consideration has been given to the nature of metamorphosis in insects, to its value to the creatures and to the mode of its origin. Scudder have revealed insects with the general aspect of cockroaches and phasmids, but with the two pairs of wings similar to each other in texture and form. Most lizards live on animal food, varying from tiny insects and worms to lizards, snakes, birds and mammals, while others prefer a mixed or an entirely vegetable diet. Eminently terrestrial in habit, the differentiation of their fore-wings and hindwings can be traced from Carboniferous, isopteroid ancestors through intermediate Mesozoic forms. Metamorphosis in Diptera is complete; the larvae are utterly different from the perfect insects in appearance, and, although varying greatly in outward form, are usually footless grubs; those of the Muscidae are generally known as maggots. Sentences Menu. The latter has established, for all the Palaeozoic insects, an order Palaeodictyoptera, there being a closer similarity between the fore-wings and the hind-wings than is to be seen in most living orders of Hexapoda, while affinities are shown to several of these orders - notably the Orthoptera, Ephemeroptera, Odonata and Hemiptera. There are also insects (fleas, &c.) in which metamorphosis of a " complete " character exists, though the insects never develop wings. - The Hop Aphis (Phorodon After the Coccidae the next most important insects male; C, ovigerous wingless female; economically are r the plant lice or A phididae. In the Mesozoic rocks (Trias and Lias) there have been discovered remains of insects intermediate between those ancient forms and our modern cockroaches, the differentiation between forewings and hindwings having begun. We have many activities and games such as memory cards, vocabulary exercises and puzzles to teach you names of the insects. He affected a great horror of insects of all kinds. Scorpio is here provided with a single or double pair of renal excretory tubes, which have been identified by earlier authors with the Malpighian tubes of the Hexapod and Myriapod insects. of proglottides or of eggs which are disseminated along with the faeces of the final host and subsequently eaten by herbivorous or omnivorous mammals, insects, worms, molluscs or fish. In insects of the order Orthoptera, departure from the normal in form and colour, carrying with it similarity to other living things, usually takes the line of protective resemblance to parts of plants. 286+25 sentence examples: 1. Two pairs of wings are present in the vast majority of insects, borne respectively on the mesothorax and metathorax. We use the model of a 1.4 paragraph, which includes a main idea, detail, example/explanation, and a wrap-up sentence. The insects comprised in it are distinguished from the earwigs by their elongate, rather narrow forewings, which usually cover, or nearly cover, the abdomen when at rest, and which are firmer in texture than the hindwings. The Sapygidae are parasitic on bees, while the Scoliidae are large, robust and hairy insects, many of which prey upon the grubs of chafers. They do not represent the opinions of YourDictionary.com. White and yellow colours predominate and insects with a proboscis of medium length are the common pollinating agents, such as short-tongued bees. There is much to be said in favour of the view entertained by some entomologists that the structural and developmental characteristics of may-flies are sufficiently peculiar to warrant the formation for them of a special order of insects, for which the names Agnatha, Plectoptera and Ephemeroptera have been proposed. After examining a rock for ants or other insects, she leaned against it, drawing in the clean smell of the forest. 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