They have long mouths, like tubes that can reach deep in flowers. Butterflies use these mouth tubes to suck nectar from flowers, as if sucking through a straw.
What do insects eat?
Practically whatever they want. There are so many different insects, that among them all, there is no potential safe food.
Many insects eat plants, some insects eat other insects, and some even drink blood. Many insects eat nectar from plants.
And some insects will eat whatever leftovers you leave lying around us. Some insects, like dragonflies and some moths, never eat.
That's because their lives are no more than a few hours or days. After these insects mature, they lay eggs, and then die.
How do insects eat?
Insects eat in various ways and they eat large amounts of food. About half are plant-eaters, eating on leaves, roots, seeds, nectar, or wood.
Insects eat in many different ways and they eat a huge range of foods. Around half are plant-eaters, feeding on leaves, roots, seeds, nectar, or wood. Aphids and leafhoppers suck up the sap from plants. Praying mantises are predators, hunting other small creatures, including insects like moths, caterpillars, flies, beetles, and spiders. Insects like mosquitoes and aphids have special mouthparts that help them pierce and suck.source
Aphids and leafhoppers suck the sap from plants. Grasshopper is a predator, hunting other small creatures, including insects such as moths, caterpillars, beetles, and spiders. Insects such as mosquitoes and aphids have special mouths that help them penetrate and suck.
Others, like killer lice and several species of female mosquitoes, eat other insects. Fleas are parasites, eating the flesh or blood of larger animals without needing them.
@radiv