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Gli insetti o entomi ( Insecta Linneo, 1758) sono una classe di animali appartenenti al grande phylum degli Arthropoda. Questa classe rappresenta il più grande tra i raggruppamenti di animali che popolano la Terra, annoverando oltre un milione di specie, pari ai cinque sesti dell'intero regno animale .
- Bug
Il bug (pronuncia inglese /bʌg/; in italiano /ˈbaɡ/), in...
- Bug
Insects (from Latin insectum) are hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes, and a pair of antennae.
Insects are a class in the phylum Arthropoda. 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. They are more than half of all known living species. They may be over 90% of animal species on Earth.
Beetles are insects that form the order Coleoptera (/ k oʊ l iː ˈ ɒ p t ər ə /), in the superorder Holometabola. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects.
Insects diversified in only about 100 million years into essentially modern forms. Insect evolution is characterized by rapid adaptation due to selective pressures exerted by the environment and furthered by high fecundity.
The longest insects are the stick insects, see below. Representatives of the extinct dragonfly-like order Meganisoptera (also known as griffinflies) such as the Carboniferous Meganeura monyi and the Permian Meganeuropsis permiana are the largest insect species ever known.
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