The pecan horned magic caterpillar is the larval stage of the emperor hawk moth. The body size is huge, up to 15cm in length, the body is blue-green, and the head is orange with black spikes. These spikes look like "horns" but are actually non-toxic. It mainly feeds on the leaves of pecan trees, walnut trees and other plants. Although it looks scary, it is actually very gentle and does not pose a threat to humans. When the larvae mature, they burrow into the soil, form a soil chamber in the ground and pupate. The pupa is dark brown or black and cylindrical in shape. After passing through the pupa stage, it will emerge into the imperial moth, which is a larger moth.

Monarch butterfly caterpillar body length 25-45mm, body segments, black, yellow, white stripes, small head, short antennae. Foods on milkey, the plant contains toxins that caterpillars store in their bodies to create a defense against predators. The life cycle includes four stages: egg, larva, pupa and adult. Female butterflies lay eggs on milkweed leaves, and after the eggs hatch, the caterpillars feed on the egg shell and milkweed leaves and undergo five molts. After the end of the fifth instar, the caterpillars fix themselves with silk pads, forming green pupae with golden spots. About two weeks later, adult monarch butterflies emerge from their pupae with brightly colored wings with orange and black markings

The emperor moth is a large moth species known for its spectacular wings and unique life cycle. The wings can extend up to 20 to 30 centimeters, making it one of the largest species of moths with wings. The larval stage is spent in a very narrow cocoon, and when they are ready to transform into adults, they must pass through a cocoon opening that is relatively small to their own body. For them, it is a huge challenge because only through this difficult process can the wings obtain sufficient blood supply and thus acquire the ability to fly. The mouthparts of adult insects will degrade after metamorphosis, so they cannot eat and can only rely on the energy stored during the larval stage for survival.

The brown striped falcon moth is distributed in the India Australia region, including India, Sri Lanka, Papua New Guinea, eastern Australia, Solomon Islands, Fiji Islands, and Vanuatu Islands. The larvae have extremely diverse colors, ranging from yellow green and green to brown or gray black. But the common color of larvae is light green.