What is the insect memo of the dragonfly, what are the types, and what is the flight?

All insects with compound eyes are very sensitive to vision.

Summary. Compound eye: It is composed of tens of thousands of single eyes (small eyes), such as the eyes of dragonflies and flies, and its advantage is that it can effectively calculate the orientation and distance between itself and the object observed, so as to facilitate the compound eye insects to make faster judgments and responses.

In the insect memo, the compound eyes of dragonflies are very special.

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In the insect memo, the dragonfly's compound eyes are particularly characterized by their visual acuity.

All insects with compound eyes are very sensitive to vision. The hemp fly is also a compound eye, and you approach the missing dragonfly and the hemp head fly, and there is still some distance before it discovers, oh-fly fingers.

Compound eye: It is composed of tens of thousands of single eyes (Suiqiao small eyes), such as the eyes of dragonflies and flies, and its advantage is that it can effectively calculate the orientation of itself and the object being observed, guess the distance between itself, and make faster judgments and reactions from compound eye insects.

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The dragonfly in the insect memo is also known as the lamp and the grasshopper.

The Insect Memo is a skimming text, and it is also a very characteristic one. It vividly introduces dragonflies, ladybugs, unicorns, grasshoppers, and other insects, reflecting the author's interest in observing and exploring nature. Dragonflies, invertebrates, phylum Arthropods, Insecta, Winged subclasses, Dragonflies, Paraptera, Dividing Dragonflies and Flyflies.

They prey on a variety of agricultural, forestry and livestock pests such as flies, mosquitoes, leafhoppers, midges and small butterfly moths. Dragonflies are an important class of natural enemies that are beneficial to humans.

The appearance characteristics of the dragonfly are as follows:

1. Dragonflies can be divided into the suborder Paraptera of dragonflies and the homoptera of damselflies (Bundle Wings), and there are only three kinds of dragonflies in the order Mesoptera which are in Japan, India, China, this suborder is known as a living fossil, the oldest in China.

2. Dragonflies are the insects with the most eyes in the world. Dragonfly eyes are large and bulging, taking up most of the head, with three single eyes, compound eyes made up of more than 28,000 small eyes, they have excellent eyesight, and can look up, down, forward, and backward without having to turn their heads.

3. The dragonfly wings are well developed, the front and rear wings are equal and narrow, membranous, the reticulated wing veins are extremely clear, and the flight ability is very strong, up to 10 meters per second, which can suddenly turn around, and can go straight into the sky, and sometimes can fly backwards.

4. The chest is oblique, the front chest is small, and it can move. The foot is close to the head (to facilitate predation). The abdomen is elongated. Although the structure of the adults is quite uniform, the size varies greatly, and the wingspan is generally 5 cm.

5. The abdomen of the dragonfly is slender, flat or cylindrical, and there is an anal appendage at the end. The feet are thin and weak, with hooked spines, which can catch pests when flying in the air.

Dragonfly, macrovertebrate unobscured macrovertebrate, insecta, dragonfly, and suborder Paraptera. Generally large, the wings are long and narrow, membranous, and the reticulate wing veins are extremely clear. There are compound eyes, extremely sensitive vision, 3 in one eye; antennae 1 pair, thin and short; Chewing mouthparts.

Dragonflies are the insects with the most eyes in the world.

Dragonflies have large, bulging eyes that occupy most of their heads, and each eye is composed of countless "small eyes" connected to photoreceptor cells and nerves, which can distinguish the shape and size of objects, they have excellent vision, and can look up, down, forward, and backward without having to turn their heads.

Summary. Dragonflies are generally larger, with long and narrow wings, 3 single eyes, 1 pair of antennae, thin and short, chewing mouthparts, elongated, flat or cylindrical abdomen, anal appendages at the end, thin and weak feet, and hooked spines. The larvae (larvae) develop in the water, breathe with the rectal tracheal gills in the water, generally go through more than 11 molts, and it takes 2 or more years to crawl out of the water along the aquatic weeds, and then finally molt and feather into adults.

Hello, the dragonfly in the third grade book of insect memo has compound eyes, wings, and hooks.

All those who have compound eyes have very sensitive vision. Dragonflies have compound bridge eyes, and flies also have them. You get close to the dragonflies and the flies, and there's still some distance between them, and they find out, and they're flying.

Dragonflies are generally larger, with long and narrow wings, 3 single-eyed limbs, 1 pair of antennae, thin and short, chewing mouthparts, elongated, flat or cylindrical abdomen, anal appendages at the end, thin and weak feet, and hooked spines. The larvae (larvae) develop in the water, and use the rectal tracheal gills in the water to suck silver, generally need to go through more than 11 molts, and it takes 2 or more years for the young to crawl out of the water along the aquatic weeds, and then finally molt and feather into adults.