IPA: /ˌkoʊliˈɒptərə/
KK: /kəˈliːəˌptərə/
A group of insects known as beetles, characterized by their hard outer wings and diverse species.
The coleoptera includes many species, such as ladybugs and fireflies.
Coleoptera → It is formed from "koleos" (from Greek, meaning sheath) and "pteron" (from Greek, meaning wing). The word "coleoptera" refers to insects with wings that are covered by a sheath, which is characteristic of this order of insects commonly known as beetles.
Think of 'sheath' ('koleos') covering 'wings' ('pteron') — that's why coleoptera refers to beetles, which have wings covered by a protective sheath.