Popillia japonica, commonly known as the Japanese beetle, is a small, metallic green beetle with copper-brown wing covers. Native to Japan, it thrives in temperate regions and is known for its voracious feeding on a wide range of plants. It is most active in warm, sunny conditions.

Popillia japonica, commonly known as the Japanese beetle, is native to Japan. It is found in the central and northern regions of the Japanese archipelago.

The Japanese beetle typically inhabits temperate climates. It thrives in areas with warm summers and cold winters, which are characteristic of its native region in Japan. The beetle prefers environments with moderate rainfall and is often found in gardens, parks, and agricultural areas where there is an abundance of its preferred host plants.

Popillia japonica occupies an ecological niche as both a pest and a pollinator. The larvae, or grubs, live in the soil where they feed on the roots of grasses and other plants, while the adults feed on the foliage, flowers, and fruits of over 300 species of plants. This adaptation allows the beetle to exploit a wide range of plant species for nutrition, leading to its success as an invasive species in other parts of the world.