Division Endopterygota, also known as Holometabola, comprises insects that undergo complete metamorphosis with distinct egg, larva, pupa, and adult stages. This division includes the most advanced and diverse insect groups, showing remarkable structural and ecological adaptations. The outline classification of Endopterygota includes several major orders, each with characteristic suborders and representative examples. Order Coleoptera is the largest order of insects and is characterized by hardened forewings known as elytra. It is divided into four main suborders: Adephaga, which includes predatory beetles such as ground beetles (Carabus) and diving beetles (Dytiscus); Polyphaga, the largest suborder, including scarab beetles (Scarabaeus), ladybird beetles (Coccinella), and weevils (Sitophilus); Archostemata, represented by primitive beetles like Cupes; and Myxophaga, consisting of small aquatic or semi-aquatic beetles such as Sphaerius. Order Lepidoptera includes butterflies and moths, characterized by scaled wings. The main suborders are Zeugloptera, represented by primitive moths like Micropteryx; Aglossata, a very small group including