Petasida ephippigera, known as the Giant Katydid, is a large, leaf-mimicking insect native to the rainforests of Australia. It exhibits remarkable camouflage, blending seamlessly with foliage. Known for its long, slender legs and vibrant green color, it primarily feeds on leaves and plays a crucial role in the forest ecosystem.

Petasida ephippigera is native to the continent of Australia, specifically found in the northern regions, including parts of Queensland and the Northern Territory.

This species typically inhabits tropical and subtropical environments. It is commonly found in woodlands and forests with dense vegetation, often near water sources such as rivers or swamps. The climate in these regions is generally warm and humid, with distinct wet and dry seasons.

Petasida ephippigera, commonly known as the Northern Giant Longhorn Beetle, plays a role as a decomposer in its ecosystem. It primarily feeds on decaying wood and plant matter, contributing to nutrient cycling. The species is also adapted to camouflage within its environment, aiding in its survival from predators.