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 …

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 …

Sep 4, 2025 · 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, …

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...

Sep 24, 2025 · Insects (Class Insecta) are the most diverse group within the animal kingdom, comprising a vast array of terrestrial and freshwater invertebrate organisms.

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 …

3 days ago · insect (plural insects) An arthropod (in the Insecta class) characterized by six legs, up to four wings, and a chitinous exoskeleton. quotations

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 …

Therefore consider the list below as a general indicator of the insects, bugs and spiders that may be found in a given state or province. The list below showcases all Pennsylvania Insects …

Oct 20, 2025 · entomology, branch of zoology dealing with the scientific study of insects. The Greek word entomon, meaning “notched,” refers to the segmented body plan of the insect. …