Insect

Insect
Temporal range: 396–0 Ma Early Devonian[1] (but see text) – Present
Insect collage.png
Clockwise from top left: dance fly (Empis livida), long-nosed weevil (Rhinotia hemistictus), mole cricket (Gryllotalpa brachyptera), German wasp (Vespula germanica), emperor gum moth (Opodiphthera eucalypti), assassin bug (Harpactorinae)
A chorus of several Magicicada species
Scientific classification e
Kingdom:Animalia
Phylum:Euarthropoda
Clade:Pancrustacea
Subphylum:Hexapoda
Class:Insecta
Linnaeus, 1758
Subgroups

See text.

Synonyms
  • Ectognatha
  • Entomida

Insects, are a class in the phylum Arthropoda.[2] They are small terrestrial invertebrates which have a hard exoskeleton.

Insects are the largest group of animals on earth by far: about 926,400 different species have been described.[3] They are more than half of all known living species.[4][4][5][6][7] They may be over 90% of animal species on Earth.[8]

New species of insects are continually being found.[9] Estimates of the total number of species range from 2 million to 30 million.[3]

Insects have six legs; and most have wings. Insects were the first animals capable of flight. As they develop from eggs, insects undergo metamorphosis. Insects live all over the planet: almost all are terrestrial (live on land). Few insects live in the oceans or in very cold places, such as Antarctica. The most species live in tropical areas.

Some people call all insects "bugs", but this is not correct. Only some insects are true bugs, which is a particular order of insects. People who study insects are called entomologists.

Insect bodies

Insect anatomy
A- Head B- Thorax C- Abdomen
1. antenna
2. ocelli (lower)
3. ocelli (upper)
4. compound eye
5. brain (cerebral ganglia)
6. prothorax
7. dorsal blood vessel
8. tracheal tubes (trunk with spiracle)
9. mesothorax
10. metathorax
11. forewing
12. hindwing
13. mid-gut (stomach)
14. dorsal tube (Heart)
15. ovary
16. hind-gut (intestine, rectum & anus)
17. anus
18. oviduct
19. nerve chord (abdominal ganglia)
20. Malpighian tubes
21. tarsal pads
22. claws
23. tarsus
24. tibia
25. femur
26. trochanter
27. fore-gut (crop, gizzard)
28. thoracic ganglion
29. coxa
30. salivary gland
31. subesophageal ganglion
32. mouthparts
.

Insects have exoskeletons (skeletons on the outside). Their skeletons are made out of thin, hard pieces or plates, like armour, made of chitin. All together, these pieces make a hard layer around the insect’s body. The exoskeleton protects the insect.

The body of an insect has three main parts: a head, a thorax, and an abdomen. On the head are an insect’s compound eyes, its two antennae (they feel and smell things), and its mouth.

On the thorax, insects have wings and legs. All insects have six legs (three pairs of jointed legs) and usually four wings (two pairs).

The abdomen is the back part of the insect. Inside the abdomen is the stomach, the heart, and the excretory system where body wastes pass out of the insect. Bees also have a stinger at the back of the abdomen.

Other Languages
Адыгэбзэ: ХьэпӀацӀэхэр
Afrikaans: Insek
Alemannisch: Insekten
አማርኛ: ሦስት አጽቄ
Ænglisc: Ceorfdēor
العربية: حشرة
aragonés: Insecta
ܐܪܡܝܐ: ܪܚܫܐ
armãneashti: Insectâ
অসমীয়া: পতংগ
asturianu: Inseutos
Avañe'ẽ: Tymbachu'i
Aymar aru: Ch'iwi
azərbaycanca: Həşəratlar
تۆرکجه: حشره‌لر
বাংলা: কীট
Bân-lâm-gú: Khun-thiông
Basa Banyumasan: Srangga
башҡортса: Бөжәктәр
беларуская: Насякомыя
беларуская (тарашкевіца)‎: Вусякі
Bislama: Insek
български: Насекоми
bosanski: Insekti
brezhoneg: Amprevan
català: Insectes
Cebuano: Insekto
čeština: Hmyz
Cymraeg: Pryf
dansk: Insekter
Deutsch: Insekten
eesti: Putukad
Ελληνικά: Έντομα
English: Insect
español: Insecta
Esperanto: Insektoj
estremeñu: Insecta
euskara: Intsektu
فارسی: حشره
Fiji Hindi: Kirwa
føroyskt: Skordýr
français: Insecte
Frysk: Ynsekten
Gaeilge: Feithid
Gaelg: Insecta
galego: Insectos
𐌲𐌿𐍄𐌹𐍃𐌺: 𐌰𐌹𐌽𐍄𐍉𐌼𐍉𐌽
客家語/Hak-kâ-ngî: Khûn-chhùng
хальмг: Хорха
한국어: 곤충
հայերեն: Միջատներ
हिन्दी: कीट
hrvatski: Kukci
Ido: Insekto
Ilokano: Insekto
Bahasa Indonesia: Serangga
interlingua: Insecta
íslenska: Skordýr
italiano: Insecta
עברית: חרקים
ಕನ್ನಡ: ಕೀಟ
Kapampangan: Insectu
ქართული: მწერები
कॉशुर / کٲشُر: کیوٚم
қазақша: Жәндіктер
kernowek: Hweskeren
Kinyarwanda: Inigwahabiri
Kiswahili: Wadudu
Kreyòl ayisyen: Ensèk
Кыргызча: Курт-кумурска
кырык мары: Капшангы
лакку: Ущущулгъи
Latina: Insecta
latviešu: Kukaiņi
Lëtzebuergesch: Insekten
лезги: Пепеяр
lietuvių: Vabzdžiai
Limburgs: Insekte
lingála: Nyama ekɛ́
Lingua Franca Nova: Inseto
lumbaart: Inset
magyar: Rovarok
македонски: Инсекти
മലയാളം: പ്രാണി
मराठी: कीटक
მარგალური: ჭანდეფი (Insecta)
مازِرونی: بئو
Bahasa Melayu: Serangga
Mìng-dĕ̤ng-ngṳ̄: Tè̤ng-ngiê
монгол: Шавж
Nāhuatl: Yolcatzin
Nederlands: Insecten
Nedersaksies: Insekt
नेपाली: किरा
नेपाल भाषा: की
日本語: 昆虫
Napulitano: Inzetto
нохчийн: Сагалмат
Nordfriisk: Insekten
norsk: Insekter
norsk nynorsk: Insekt
occitan: Insecta
олык марий: Шыҥа-копшаҥге
oʻzbekcha/ўзбекча: Hasharotlar
ਪੰਜਾਬੀ: ਕੀਟ
Pälzisch: Insekten
پنجابی: کیڑے
پښتو: خوځندکې
Patois: Insek
Plattdüütsch: Insekten
polski: Owady
português: Insetos
Qaraqalpaqsha: Shıbın-shirkeyler
română: Insectă
Runa Simi: Palama
русиньскый: Хробач
русский: Насекомые
саха тыла: Үөн-көйүүр
संस्कृतम्: जन्तुः
sardu: Babbalottu
Scots: Insect
Seeltersk: Insekte
shqip: Insekti
sicilianu: Nzettu
සිංහල: කෘමියෝ
slovenčina: Hmyz
slovenščina: Žuželke
Soomaaliga: Xasharaad
کوردی: مێروو
српски / srpski: Инсекти
srpskohrvatski / српскохрватски: Insekt
Basa Sunda: Gegeremet
svenska: Insekter
Tagalog: Kulisap
தமிழ்: பூச்சி
татарча/tatarça: Бөҗәкләр
తెలుగు: కీటకము
ไทย: แมลง
ትግርኛ: ሓሽራ
тоҷикӣ: Ҳашарот
lea faka-Tonga: ʻinisēkite
Tsetsêhestâhese: Meškêso
Türkçe: Böcek
українська: Комахи
اردو: حشرات
Vahcuengh: Non
vèneto: Bai
vepsän kel’: Gavedid
Tiếng Việt: Côn trùng
Võro: Mutuk
walon: Inseke
West-Vlams: Insektn
Winaray: Insektó
Wolof: Gunóor
吴语: 昆虫
ייִדיש: אינסעקט
Yorùbá: Kòkòrò
粵語: 昆蟲
žemaitėška: Vabzdē
中文: 昆虫