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 …

Nov 23, 2025 · insect, (class Insecta or Hexapoda), any member of the largest class of the phylum Arthropoda, which is itself the largest of the animal phyla. Insects have segmented bodies, jointed …

3 days ago · Insects are six-legged invertebrates that are members of the class Insecta within the phylum Arthropoda. They are distinguished by their three-part bodies covered by a hard, chitinous …

All insects belong to the phylum Arthropoda. But unlike other arthropods—like lobsters, spiders, or millipedes—insects have three pairs of jointed legs, segmented bodies, an exoskeleton, one...

Insects are found in every terrestrial environment on Earth, and terrestrial ecosystems everywhere in the world depend upon them. Without insects as pollinators, we would have far fewer flowering plants.

Entries are listed below in alphabetical order (A-to-Z). As with our other list pages, you can click on the small 'X' in each entry to remove unneeded/unwanted entries in the result. You can always go back …

In this video for Grades 3 to 5, you’ll learn about the features all insects have. You will learn to identify an insect from other arthropods.

May 4, 2025 · As you may remember from elementary school, the most basic definition of an insect is an organism with three pairs of legs and three body regions: head, thorax, and abdomen.

Dec 7, 2025 · insect (plural insects) An arthropod (in the Insecta class) characterized by six legs, up to four wings, and a chitinous exoskeleton.

The word "insect" is derived from the Latin word insectum, meaning notched, and refers to their body segmentation. The second and third segments of the adult thorax often bear wings, which may …