coleoptera
Insect order, beetles
Coleoptera is the scientific order comprising beetles—insects with hardened forewings that form protective covers over membranous hindwings.
It's the largest order in the animal kingdom, containing roughly a quarter of all known animal species.
The term appears mainly in entomology and biology: Coleoptera includes fireflies, weevils, and ladybugs. (Often capitalized as the formal taxonomic name.)