Caterpillar into a butterfly, is a relatively long process, the mother butterfly in the right temperature, first laid eggs in the leaves, each time about 200 eggs, the reason why it chose this place to lay eggs, in order to eggs hatch into worms, there is plenty of food to eat, that is, leaves.

A few days later, the larvae inside grow up, and when they have the strength to break through the eggs, they will break out, a small worm is a new life.

These bugs are in desperate need of nutrients because they need to keep growing, and their initial source of nutrients is the eggshells that nurtured them, which they first eat and enjoy before eating the leaves at their feet.

Because their life journey is very long, they have to keep eating, eat themselves round and fat, they keep eating the leaves around them, tireless, and very fast, they eat like crazy after two weeks, their body has become very fat.

Before they metamorphose, they spit out silk to anchor themselves to a branch, and then spend the next two weeks dissolving away until they dissolve into a sack of nutrient-rich liquid, their cells are allowed to be born anew, and they slowly morph into feet, wings, and tentacles, among other things.

When all the conditions are right, a butterfly penetrates the resistance of its shell and emerges, and in just a few hours it is ready to take off, free to walk through the trees and flowers.

Expanded Information:

After the larvae of butterflies bite through the eggshell and hatch out, some species will nibble directly on the host plant after a short rest; some species (such as the red-eyed bamboo butterfly) will feed on the eggshell first, and then feed on the plant; and some species will feed on the old epidermis that is shed every time they moult, for example, the cabbage butterflies and the spotted pea butterflies, and so on.

Butterfly larvae feeding object, according to the species and have different, most larvae feeding on leaves; Some species, for example, pollen butterfly, orange spotted lapel psyllid and so on feeding on flower buds;

And some species feeding on young pods or young fruits, for example, pods of the gray butterfly feeding on young pods, gardenia gray butterfly feeding on the young fruits of the gardenia. In addition in the gray butterfly family, there are a few species of larvae are carnivorous.

For example, the mealybug gray butterfly feeds on coffee mealybugs, and the bamboo aphid gray butterfly feeds exclusively on bamboo aphids, which is a carnivorous species that is not common among butterflies.

Larvae feeding on plant leaves, such as the first instar of the early stage, often in the back of the leaf nibbling leaf flesh, residual epidermis, the formation of a glass window-like transparent spots, and later the larvae to eat the leaf perforation, or from the edge of the leaf to the inside of the nibbling;

With the body of the insect grows larger and larger, the amount of food is also getting bigger and bigger. In a plant with a high density of insects, the whole plant is eaten up.

Most butterflies suck nectar, as far as nectar-sucking butterflies are concerned, they not only suck nectar, but also prefer to suck the nectar of certain specific plants, for example, the blue crested butterfly is addicted to the nectar of the lily family;

The vegetable butterfly is addicted to the nectar of the cruciferous family of plants; the leopard nymphs are addicted to the nectar of plants of the Asteraceae family and so on; some of the butterflies which don't suck nectar are the bamboo-eyed butterfly which sucks the fig juice;

The bamboo-eyed butterfly is an insect that sucks the nectar of plants in the family of the Botanica family of plants.

The pale violet nymph sucks the sour pulp of diseased oak and poplar; and some butterflies suck the flesh of grapes, which is commonly sucked by butterflies in grape fields.