Is dragonfly an insect?
In summer in the countryside, we often see dragonflies flying around, or docking on lotus leaves to rest. So, is dragonfly an insect? Now I would like to introduce to you.
Is a dragonfly an insect?
Dragonflies are insects, insects of the order Odonata of the class Insecta, which are divided into the family Dragonidae and the family Odonata. It belongs to an incomplete metamorphosis insect. It only goes through three stages: egg, juvenile and adult. It does not need to go through the process of pupation in the stage from juvenile to adult. The larva lives in water, breathes with rectal trachea Gill and preys with a well-developed facial cover. it usually takes more than 11 times to molt, and it takes 2 years or more years to molt into adults.
Is dragonfly a beneficial insect?
Dragonflies are beneficial insects, whether juvenile or adult, and eat more pests. It is carnivorous, and early juveniles feed on aquatic animals such as small crustaceans and protozoa; later juveniles feed on chironomid larvae, aquatic beetles and snails, and even small fish; adults can prey on insects harmful to humans, such as mosquitoes and flies, and some can also prey on butterflies, moths, bees and so on.
How many eyes does a dragonfly have?
Dragonfly is the insect with the largest number of eyes in the world. Its eyes are large and bulging, occupying most of its head. It has three single eyes and its compound eyes are made up of more than 28000 small eyes. Although humans can see a colorful world of red, blue and green, dragonflies have up to 33 different photosensitive proteins and may see more colors than humans.
Dragonflies are the winged insects with the best vision in the animal kingdom. they have excellent eyesight, and they can look up, down, forward and backward without turning their head, and their compound eyes can measure the speed of their compound eyes. each "small eye" produces a response in turn, and the speed of the target object can be determined after processing.
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