关于昆虫的论文摘要英文怎么写高中

The 21st century， mankind is faced with a more severe population growth， lack of important resources and environmental pollution pressures and challenges， and open up new resources， the path of sustainable development is the development of agricultural industrialization in China the only Insects as the largest on earth has not been fully utilized the resources of the treasure-house and has drawn greater Insect protein resource development and industrialization， will enter the high-tech， high-yield characterized by multi-level， comprehensive utilization Insect-rich protein， unsaturated fatty acids， trace elements， is a senior human nutrition Tenebrio molitor protein contains 18 kinds of amino acids， and essential to the human body contains eight kinds of amino acids， amino acid content accounted for 40% of the total， the ratio closer to the model of the human amino acid requirements， but also contains a variety of minerals， vitamins and trace elements， known as the "treasure house of animal " Tenebrio study abroad to improve the human immune system protein， anti-fatigue， anti-aging， reducing blood lipids and promote cholesterol In this paper， supercritical CO2 extraction technology of oil extraction Preparation of Tenebrio molitor Tenebrio molitor powder skim the optimum conditions were studied in order to get the Tenebrio molitor protein powder as raw material， the use of base formulation and enzyme formulations for proteins of Tenebrio molitor Extraction of the extraction process of these two comparative Tenebrio first preparation of crude protein to Defatted powder， supercritical CO2 extraction technology to skim handling of Tenebrio molitor， Tenebrio molitor in the oil extraction rate as an index， a three-factor three-level orthogonal experimental design to determine Tenebrio supercritical CO2 extraction of oil The optimum conditions are as follows: extraction temperature 45 ℃， the pressure of 25MPa， the time Tenebrio oil extraction rate of 99% Alkaline extraction with high extraction rate， the characteristics of low-cost， single-factor experiments and orthogonal test results show that the best conditions for alkali formulation as follows: alkali concentration of 0% mol / L， at 70 ℃， liquid-solid ratio 12:1 Tenebrio protein extraction conditions for 90min， in the extraction conditions， Tenebrio molitor protein extraction rate can reach 11%， 20% Enzymatic extraction with mild reaction conditions and substrate specificity of the characteristics of a Tenebrio different protease extract the role of protein have different approaches to protein extraction rate and the quality of protein extract as an index to compare the protease protein of Tenebrio molitor extract the effect of protease and that the complex compound extracted flavourzyme efficient and the final protein good quality To enhance the utilization of raw materials and Tenebrio molitor protein extraction rate， selection of these two enzymes for the enzyme Using two separate enzyme extraction， step-by-step for the extraction and re-extract the results of cooperation in comparison to the rate of protein extraction as an index for the reference degree of hydrolysis， the use of single factor experiments and orthogonal experiment to determine the Tenebrio protease extracted the most good process for the composite and complex protease flavourzyme to conduct two-enzyme complex extraction: 6% the amount of enzyme protease complex and composite plus flavourzyme than 1:3， liquid-solid ratio 9:1， extraction time 8 hours， pH 5 temperature of 55 ℃ Optimum conditions in the extraction of Tenebrio molitor protein， extraction rate can reach 83%， 17% Tenebrio body contains a variety of pigments and polyphenols， of which polyphenols easily in response to Maillard reaction， in the course of enzyme to produce more or less bitter peptide， and in order to maintain its optimum pH value range， the need to join the acid， alkali， resulting in a lot of salt， and the protein extract of Tenebrio molitor darker color， to be refined to deal with Tenebrio molitor 3% by adding activated carbon for decolorization， debittering available color clear extract protein taste Through the cation-anion exchange resin can remove 20% of the salt， and finally through the spray-drying the protein to be light yellow Alkali formulation obtained toxicology protein product safety evaluation results show that: protein products derived from the reference base is the basic security of the non-toxic (LD50 in mice is greater than its 120g/Kg)， therefore， can be used as high-protein and other animals In short， this paper two methods of protein extraction studies， the initial establishment of the Tenebrio molitor protein extraction methods and the best technology， the development of Tenebrio molitor for the future of protein resources to provide a theoretical Keywords: Tenebrio molitor; protein; supercritical fluid extraction; alkali; Enzyme; extraction process; amino acid

研究昆虫控制的文章Athenix and Monsanto Announce Collaboration on Research for Insect ControlRESEARCH TRIANGLE PARK， NC and ST LOUIS， June 20 /PRNewswire-FirstCall/ -- Athenix C and Monsanto Company today announced they have entered into a three-year research collaboration for insect control on a key class of insects that affects a number of Monsanto's major crops of Financial terms of the agreement were not "We are pleased to work with the market leader in crop genetics to bring our technical capabilities to commercialization，" said Mike Koziel， chief executive officer for A "Working with Monsanto to discover novel genes for controlling insect pests increases options for farmers and allows Athenix to demonstrate the power of its integrated discovery platforms for new biotech traits，" said Nick Duck， vice president of research at A Athenix will apply its expertise in microbial screening and genomics to facilitate gene discovery intended to help protect crops such as cotton， soybeans and corn against a common class of insects known as H Hemipteran insects include Lygus， a pest of cotton， and stinkbug， a pest of "This collaboration will work to offer an essential benefit to our farmer customers by providing insect protection in crops such as corn， cotton and soybeans against the piercing and sucking Insect tolerant crops allow growers to spray less pesticide， making their operations more efficient and at the same time stewarding the environment，" said Robert T Fraley， PD， Monsanto executive vice president and chief technology "We're excited to collaborate with Athenix to help broaden grower's options for insect " About Athenix: Athenix is a leading biotechnology company that develops novel products and technologies for agricultural and industrial applications， including biofuels and Athenix has established an outstanding intellectual property portfolio and market access ability around enhanced plants， microbes， genes， enzymes， and processes with emphasis on two major markets: 1) novel agricultural traits for growers such as insect resistance， nematode resistance， herbicide tolerance， and their use for the crop production industry; and 2) the discovery of genes and proteins for use in the sustainable chemical industry with a focus on biofuels like ethanol and other natural Biological control of locusts New weapons for old enemiesDuring the 1988 desert locust plague， swarms crossed the Atlantic from Mauritania to the Caribbean， flying 5 000 kilometres in 10 Scientists were stumped because migrating swarms normally come down to rest every But locusts can’t swim， so how could it be? It turned out that the swarms were coming down at sea – on any ships they could find， but also in the water The first ones in all drowned but their corpses made rafts for the other ones to rest Since the dawn of agriculture more than 10 000 years ago mankind has had to deal with a resourceful and fearless enemy， Schistocerca gregaria， the desert Normally loners， every so often these natives of the deserts from West Africa to India turn into vast， voracious swarms that leave hunger and poverty behind them wherever they Throughout history， farmers and governments have made attempts to repel the bands and swarms of locusts by collecting insects， creating noise， making smoke and burying and burning the But all of this had little With swarms sometimes extending for hundreds of kilometres， and containing billions of individuals， they conquered by sheer force of Health concernsIt has long puzzled humans where these animals came from and where they Only in the mid-20th century was it realized that the light brown solitary desert-dwelling insect was the same species as the red and yellow locusts of the Only when its biology was understood and chemical pesticides and aerial spraying became available a few decades ago， could efforts be made to control the But large-scale pesticide use also raised real concerns for human health and the On the seventh-floor Emergency Centre for Locust Operations (ECLO) at FAO Headquarters in Rome， Keith Cressman， FAO's locust forecaster， checks current environmental conditions and locust population data from the three computer screens on his The last big locust upsurge ended early in 2005 and the current alert level is green or The experts at FAO’s ECLO are readying to fight the next round in the age-old battle against locusts – wherever and whenever that may “The next time，” says Cressman， “we’ll fight with new tools” New bio-control agents Recent advances in biological control research， coupled with improved surveillance and intelligence， could make a big difference when the next round in the battle is Such products could make it possible to sharply reduce the amount of chemical pesticides One promising avenue is research currently under way at the International Centre for Insect Physiology and Ecology (ICIPE) in N An ICIPE team headed by a Zanzibar-born chemical ecologist， Ahmed Hassanali， has identified and synthesized a specific locust pheromone， or chemical signal， that can be used against young locusts with devastating Phenylacetonitrile， or PAN for short， normally governs swarming behaviour in adult males who also use it to warn other males to leave them in peace while they But， Hassanali found it has startlingly different results on juvenile wingless locusts， known as Hopper bandsJust as adult locusts form swarms， hoppers will， given the right conditions， stop behaving as individuals and line up in marauding bands up to 5 kilometres They are only slightly less voracious than adults， who eat their own weight of food every In three separate field trials – the most recent in Sudan last year – Hassanali’s team showed that even minute doses of PAN could stop hopper bands dead in their tracks and make them break PAN caused the insects to resume solitary Confused and disoriented， some lost their appetite altogether， while others turned cannibal and ate one Any survivors were easy prey for What makes PAN particularly attractive is that the dose needed is only a fraction – typically less than 10 millilitres per hectare – of the quantities of chemical or biological This translates into substantially lower costs – 50 cents per hectare as opposed to US$12 for chemical pesticides and $15-20 for other bio-control That is clearly a major consideration in the countries in the front line – many of them among the world’s Green Muscle A different， but also highly effective biological approach is Green Muscle ®， a bio-pesticide developed by the International Institute for Tropical Agriculture’s biological control centre in Cotonou， Benin， and manufactured in South A Green Muscle ® contains spores of the naturally occurring fungus Metarhizium anisopliae acridum， which germinate on the skin of locusts and penetrate through their The fungus then destroys the locust's tissues from the This is definitely not good news for locusts， but the fungus has no effect on other life A product similar to Green Muscle ® is already successfully used in Australia， but the latter's introduction in Africa and Asia is being slowed by several These include a need for further large-scale trials， official approval of the product in several countries， and a relatively short shelf-life in its normal ready-to-spray liquid One drawback is that it takes days to kill the It is also relatively expensive and large-scale production would need to be A solution would be to store the product in powder form and dilute it just before Hassanali’s team has also shown that， if used in combination with a small amount of PAN， only a quarter of the normal dose of Green Muscle ® is Insect Growth RegulatorsAlso being readied for the modern locust fighter’s armoury is a class of products known as Insect Growth Regulators， or IGRs， which influence the ability of hoppers to moult and grow They have no direct toxic effects on IGRs are effective for several weeks after application and can be used in so-called barrier In this method only narrow swathes of the product are applied， perpendicular to the direction of the marching hopper Only 10 percent of the amount used in blanket treatment is After marching over one or two barriers the hoppers absorb enough product to die while As with PAN and Green Muscle ®， however， IGRs need to be aimed at locusts at an early stage in their lives， before they take to the That， in turn， requires an advanced level of surveillance and intelligence-gathering to make sure that any locust concentrations are nipped in the eLocust2Although back at ECLO Keith Cressman has satellites， computers and mathematical models at his disposal， the weak link in the chain has been the time it takes to get good information from the The mobile ground teams whose job it is to keep tabs on locust populations have to work in some of the world’s remotest， hottest and sometimes (for environmental and security reasons) most hostile A week or more might go by before a report from， say， the central Sahara， reached Cressman’s By that time the locusts – “They don’t need visas，” he says – would quite likely have moved to another country or continent This will soon change Field teams are now being issued with special hand-held devices to record vital locust and environmental data and relay them back to their own headquarters and on to Rome in real Developed by the French Space Agency CNES， the eLocust2 device is able to bounce the information off communications satellites and have the data arrive in the National Locust Control Centre in the affected country a few minutes later， from where they are passed on to Cressman for In case of unusually heavy hopper concentrations， immediate action can be taken to make sure that the locusts never grow old enough to Back to the fieldWriting in Science magazine， locust expert Martin Enserink gave the following graphic description of a locust population gone out of control:“On a beautiful November morning (in Morocco) it’s clear， even from afar， that something’s terribly wrong with the trees around this tiny They are covered with a pinkish-red gloss， as if their leaves were changing "As you get closer， the hue becomes a wriggling mass; a giant cap of insects on every tree， devouring the tiny Get closer still and you’ll hear a soft drizzle: the steady stream of locust droppings falling to the ” Such nightmare visions， and locust plagues with them， may one day be a thing of the

老师留下的作业吧~！？

呵呵。这个提问太哪个了。不好回答。

关于昆虫的论文摘要英文版高中

翻译可能有错误Insects are a major group of arthropods and the most diverse group of animals on the Earth， with over a million described species more than half of all known living organisms with estimates of undescribed species as high as 30 million， thus potentially representing over 90% of the differing life forms on the Insects may be found in nearly all environments on the planet， although only a small number of species occur in the oceans， a habitat dominated by another arthropod group， the There are approximately 2，000 praying mantis， 5，000 dragonfly species， 20，000 grasshopper， 82，000 true bug， 120，000 fly， 110，000 bee， wasp and ant， 170，000 butterfly and moth， and 360，000 beetle species described to Estimates of the total number of current species， including those not yet known to science， range from two million to fifty million， with newer studies favouring a lower figure of about six to ten Adult modern insects range in size from a 139mm (00547 in) fairyfly (Dicopomorpha echmepterygis) to a 7centimetres (3in) long stick insect (phobaeticus chani) The heaviest documented insect was a Giant Weta of 70 g (5 oz)， but other possible candidates include the Goliath beetles Goliathus goliatus， Goliathus regius and Cerambycid beetles such as Titanus giganteus， though no one is certain which is truly the The study of insects (from Latin insectus， meaning "cut into sections") is called entomology， from the Greek， also meaning "cut into sections"昆虫是一大组和节肢动物动物地球上最多样化的群体，有超过一百万种超过一半的所有已知的生物与描述过的物种估计高达30000000，因此可能代表了不同的生命形式在这个星球上90%。昆虫可以在几乎所有的环境在地球上存在的，虽然只有一小数量的物种出现在海洋中，由另一个节肢动物甲壳类为主的栖息地。大约有2000的螳螂，5000的蜻蜓物种，草蜢20000，82000个真正的错误，120000粉，110000只蜜蜂，黄蜂和蚂蚁，蝴蝶和蛾的170000，和360000甲虫物种描述的日期。目前的物种总数的估计，包括那些尚未被科学，从二百万到五千万的范围内，新的研究支持了一个较低的数字六到一千万。成人现代昆虫的尺寸范围从139mm（00547）fairyfly（dicopomorpha echmepterygis）到一个7centimetres（3in）长的竹节虫（有时我）。最大的记录的昆虫是一种沙螽70克（5盎司），但其他可能的候选人包括巨型甲虫大角金龟，Goliathus钦定和天牛如泰坦大天牛，虽然没有一个是肯定的，是真正的重。研究昆虫（来自拉丁美洲insectus，意义"；切段"；）被称为昆虫，从希腊，也意为“切片”；。

of being ""Why has she not written t

itors and veterans among the editors who have created their own little They have their own club that you can’t They’ll try to stretch the boundaries， to push through their own headlines d You’ll have to fight hard to hold your ”

Butterfly Butterfly is They are They can fly and they have two I like What about you?本文为20词的英语作文，本人为小学六年级，所以会有错误的地方，请谅解，请多多指教

关于昆虫的论文摘要英文怎么写

通过主题活动的开展，幼儿感受到了大自然中昆虫的美，认识了常见的昆虫，知道了昆虫的本领，了解了昆虫的生长环境，体验到了制作昆虫标本的乐趣，他们具有保护益虫、消灭害虫的意识，在活动中不仅体验到了活动的乐趣，而且增长了知识这个我可以给你一篇的哦

The 21st century， mankind is faced with a more severe population growth， lack of important resources and environmental pollution pressures and challenges， and open up new resources， the path of sustainable development is the development of agricultural industrialization in China the only Insects as the largest on earth has not been fully utilized the resources of the treasure-house and has drawn greater Insect protein resource development and industrialization， will enter the high-tech， high-yield characterized by multi-level， comprehensive utilization Insect-rich protein， unsaturated fatty acids， trace elements， is a senior human nutrition Tenebrio molitor protein contains 18 kinds of amino acids， and essential to the human body contains eight kinds of amino acids， amino acid content accounted for 40% of the total， the ratio closer to the model of the human amino acid requirements， but also contains a variety of minerals， vitamins and trace elements， known as the "treasure house of animal " Tenebrio study abroad to improve the human immune system protein， anti-fatigue， anti-aging， reducing blood lipids and promote cholesterol In this paper， supercritical CO2 extraction technology of oil extraction Preparation of Tenebrio molitor Tenebrio molitor powder skim the optimum conditions were studied in order to get the Tenebrio molitor protein powder as raw material， the use of base formulation and enzyme formulations for proteins of Tenebrio molitor Extraction of the extraction process of these two comparative Tenebrio first preparation of crude protein to Defatted powder， supercritical CO2 extraction technology to skim handling of Tenebrio molitor， Tenebrio molitor in the oil extraction rate as an index， a three-factor three-level orthogonal experimental design to determine Tenebrio supercritical CO2 extraction of oil The optimum conditions are as follows: extraction temperature 45 ℃， the pressure of 25MPa， the time Tenebrio oil extraction rate of 99% Alkaline extraction with high extraction rate， the characteristics of low-cost， single-factor experiments and orthogonal test results show that the best conditions for alkali formulation as follows: alkali concentration of 0% mol / L， at 70 ℃， liquid-solid ratio 12:1 Tenebrio protein extraction conditions for 90min， in the extraction conditions， Tenebrio molitor protein extraction rate can reach 11%， 20% Enzymatic extraction with mild reaction conditions and substrate specificity of the characteristics of a Tenebrio different protease extract the role of protein have different approaches to protein extraction rate and the quality of protein extract as an index to compare the protease protein of Tenebrio molitor extract the effect of protease and that the complex compound extracted flavourzyme efficient and the final protein good quality To enhance the utilization of raw materials and Tenebrio molitor protein extraction rate， selection of these two enzymes for the enzyme Using two separate enzyme extraction， step-by-step for the extraction and re-extract the results of cooperation in comparison to the rate of protein extraction as an index for the reference degree of hydrolysis， the use of single factor experiments and orthogonal experiment to determine the Tenebrio protease extracted the most good process for the composite and complex protease flavourzyme to conduct two-enzyme complex extraction: 6% the amount of enzyme protease complex and composite plus flavourzyme than 1:3， liquid-solid ratio 9:1， extraction time 8 hours， pH 5 temperature of 55 ℃ Optimum conditions in the extraction of Tenebrio molitor protein， extraction rate can reach 83%， 17% Tenebrio body contains a variety of pigments and polyphenols， of which polyphenols easily in response to Maillard reaction， in the course of enzyme to produce more or less bitter peptide， and in order to maintain its optimum pH value range， the need to join the acid， alkali， resulting in a lot of salt， and the protein extract of Tenebrio molitor darker color， to be refined to deal with Tenebrio molitor 3% by adding activated carbon for decolorization， debittering available color clear extract protein taste Through the cation-anion exchange resin can remove 20% of the salt， and finally through the spray-drying the protein to be light yellow Alkali formulation obtained toxicology protein product safety evaluation results show that: protein products derived from the reference base is the basic security of the non-toxic (LD50 in mice is greater than its 120g/Kg)， therefore， can be used as high-protein and other animals In short， this paper two methods of protein extraction studies， the initial establishment of the Tenebrio molitor protein extraction methods and the best technology， the development of Tenebrio molitor for the future of protein resources to provide a theoretical Tenebrio molitor; protein; supercritical fluid extraction; alkali; Enzyme; extraction process; amino acid

The 21st century， the humanity is facing the more stern population sharp increase， the resources plaque deficiency and the environmental pollution pressure and the challenge， opens the new resources， walks the sustainable development path is our country agriculture industrial production development way that must be But the insect takes on the Earth biggest time not to pay attention by the full use resources treasure The insect protein resources development and the industrial production， will certainly to enter take the high tech， the high income as the characteristic multi-level， the comprehensive utilization The insect contains the protein， the unsaturated fatty acid， the trace element richly， is humanity's high-level nutrition source Tenebrio molitor protein contains 18 kinds of amino acids， and essential to the human body contains eight kinds of amino acids， amino acid content accounted for 40% of the total， the ratio closer to the model of the human amino acid requirements， but also contains a variety of minerals， vitamins and trace elements， known as the "treasure house of animal " Tenebrio study abroad to improve the human immune system protein， anti-fatigue， anti-aging， reducing blood lipids and promote cholesterol In this paper， supercritical CO2 extraction technology of oil extraction Preparation of Tenebrio molitor Tenebrio molitor powder skim the optimum conditions were studied in order to get the Tenebrio molitor protein powder as raw material， the use of base formulation and enzyme formulations for proteins of Tenebrio molitor Extraction of the extraction process of these two comparative Tenebrio first preparation of crude protein to Defatted powder， supercritical CO2 extraction technology to skim handling of Tenebrio molitor， Tenebrio molitor in the oil extraction rate as an index， a three-factor three-level orthogonal experimental design to determine Tenebrio supercritical CO2 extraction of oil The optimum conditions are as follows: extraction temperature 45 ℃， the pressure of 25MPa， the time Tenebrio oil extraction rate of 99% The alkaline process extraction has the extraction rate to be high， the cost low characteristic， uses the single factor experiment and the orthogonal test result indicated， the alkali formulation optimum condition is: The lye density is 0%mol/L， in 70℃;， the fluid solid ratio is 12:1 condition extraction flour weevil protein 90min， under this extraction technological conditions， the flour weevil protein extraction rate may achieve 11%， the purity is 20% Enzymatic extraction with mild reaction conditions and substrate specificity of the characteristics of a Tenebrio different protease extract the role of protein have different approaches to protein extraction rate and the quality of protein extract as an index to compare the protease protein of Tenebrio molitor extract the effect of protease and that the complex compound extracted flavourzyme efficient and the final protein good quality To enhance the utilization of raw materials and Tenebrio molitor protein extraction rate， selection of these two enzymes for the enzyme Using two separate enzyme extraction， step-by-step for the extraction and re-extract the results of cooperation in comparison to the rate of protein extraction as an index for the reference degree of hydrolysis， the use of single factor experiments and orthogonal experiment to determine the Tenebrio protease extracted the most good process for the composite and complex protease flavourzyme to conduct two-enzyme complex extraction: 6% the amount of enzyme protease complex and composite plus flavourzyme than 1:3， liquid-solid ratio 9:1， extraction time 8 hours， pH 5 temperature of 55 ℃ Optimum conditions in the extraction of Tenebrio molitor protein， extraction rate can reach 83%， 17% Tenebrio body contains a variety of pigments and polyphenols， of which polyphenols easily in response to Maillard reaction， in the course of enzyme to produce more or less bitter peptide， and in order to maintain its optimum pH value range， the need to join the acid， alkali， resulting in a lot of salt， and the protein extract of Tenebrio molitor darker color， to be refined to deal with Tenebrio molitor 3% by adding activated carbon for decolorization， debittering available color clear extract protein taste Through the cation-anion exchange resin can remove 20% of the salt， and finally through the spray-drying the protein to be light yellow Alkali formulation obtained toxicology protein product safety evaluation results show that: protein products derived from the reference base is the basic security of the non-toxic (LD50 in mice is greater than its 120g/Kg)， therefore， can be used as high-protein and other animals In short， this paper two methods of protein extraction studies， the initial establishment of the Tenebrio molitor protein extraction methods and the best technology， the development of Tenebrio molitor for the future of protein resources to provide a theoretical Tenebrio molitor; protein; supercritical fluid extraction; alkali; Enzyme; extraction process; amino acid

那么多昆虫，你要哪个？找英文的，你去google啊。

关于昆虫的论文摘要英文怎么写初中

新概念四 SPARE THE SPIDERS

呵呵。这个提问太哪个了。不好回答。

关于昆虫的论文摘要怎么写初中英语

去有道查或百度一下：关于昆虫的英语作文

The insect is a number of the nuture，they lives in the grassyland or the we should protect them because they are important for 译文：昆虫是大自然中的一员，它们生活在草地里或者树上我们应该保护它们因为它们对我们来说很重要Butterflies are a kind of beautiful They are very The color of them are red，pink，blueand so I like them because they are a part of the Thank you!Cockroaches are insects of the order Blattaria or Blattodea，of which about 30 species out of 4，500 total are associated with human About four species are well known as [1][2]Among the best-known pest species are the American cockroach，Periplaneta americana，which is about 30 millimetres (2 in) long，the German cockroach，Blattella germanica，about 15 millimetres (59 in) long，the Asian cockroach，Blattella asahinai，also about 15 millimetres (59 in) in length，and the Oriental cockroach，Blatta orientalis，about 25 millimetres (98 in)Tropical cockroaches are often much bigger，and extinct cockroach relatives and 'roachoids' such as the Carboniferous Archimylacris and the Permian Apthoroblattina were not as large as the biggest modern species

Insects are a major group of arthropods and the most diverse group of animals on the Earth， with over a million described species more than half of all known living organisms with estimates of undescribed species as high as 30 million， thus potentially representing over 90% of the differing life forms on the Insects may be found in nearly all environments on the planet， although only a small number of species occur in the oceans， a habitat dominated by another arthropod group， the There are approximately 2，000 praying mantis， 5，000 dragonfly species， 20，000 grasshopper， 82，000 true bug， 120，000 fly， 110，000 bee， wasp and ant， 170，000 butterfly and moth， and 360，000 beetle species described to Estimates of the total number of current species， including those not yet known to science， range from two million to fifty million， with newer studies favouring a lower figure of about six to ten Adult modern insects range in size from a 139mm (00547 in) fairyfly (Dicopomorpha echmepterygis) to a 7centimetres (3in) long stick insect (phobaeticus chani) The heaviest documented insect was a Giant Weta of 70 g (5 oz)， but other possible candidates include the Goliath beetles Goliathus goliatus， Goliathus regius and Cerambycid beetles such as Titanus giganteus， though no one is certain which is truly the The study of insects (from Latin insectus， meaning "cut into sections") is called entomology， from the Greek， also meaning "cut into sections"

Butterfly， commonly known as Butterfly， the whole world there are about 14，000 species， most of which lies in the Americas， particularly in the Amazon most varieties in the world in addition to other regions outside the polar cold zone， are distributed in Asia， Taiwan is also well-known to a wide variety of General colorful butterflies， the wings and body there are various piebald head rod or a pair of hammer-like The largest butterfly wings up to 24 centimeters， and the youngest is only 6 Large Butterfly very interesting， special someone to collect all kinds of butterfly specimens in the Americas butterfly movement and Bird Watching， become an activity that attracted many There are many types of butterflies， fruits， agriculture and the main 原文：蝶，通称为“蝴蝶”，全世界大约有14000余种，大部分分布在美洲，尤其在亚马逊河流域品种最多，在世界橙尖粉蝶(Anthocharis cardamines)其他地区除了南北极寒冷地带以外，都有分布，在亚洲，台湾也以蝴蝶品种繁多著名。蝴蝶一般色彩鲜艳，翅膀和身体有各种花斑，头部有一对棒状或锤状触角。最大的蝴蝶展翅可达24厘米，最小的只有6厘米。大型蝴蝶非常引人注意，专门有人收集各种蝴蝶标本，在美洲“观蝶”迁徙和“观鸟”一样，成为一种活动，吸引许多人参加。有许多种类的蝴蝶是农业和果木的主要害虫