Red dragonflies are already rare

Updated on culture 2024-05-24
9 answers
  1. Anonymous users2024-02-11

    Red dragonflies are not uncommon.

    Red Dragonfly Encyclopedia:

    The red dragonfly is one of the living dragonflies. In modern life, children's songs, classic songs, edible oily shoes, leather goods, and children's clothing are all available"Red dragonfly"Nomenclative.

    Red dragonfly with a belly length of about 3 cm and hindwings about 4 cm long. Mature male dragonflies have vermilion body color and transparent wings; Females are yellow and are found at low altitudes in the medium red dragonfly**1 (15 photos). The red dragonfly mainly appears from April to December, and is often active near the grass near the water, and is one of the common dragonflies.

    Red dragonfly is the general name of the genus Red Dragonfly in the dragonfly family, with about 21 species such as semi-yellow red dragonfly and summer red dragonfly. Both adult and immature males are yellow, but males slowly "change color" during maturation, turning from yellow to red. Previously, it was thought that this color difference between the sexes was intended to make it easier to identify them when they reproduced.

    Researchers at the National Institute of Industrial Science and Technology (AIST) in Japan collected the body pigments of three species of red dragonflies, including the summer dragonfly, and found that they belong to ocular pigments such as ocular pigments with strong red characteristics, which turn yellow when an oxidant is added, and turn back to red when a reducing agent is added. If a reducing agent is injected into a yellow female dragonfly, they will also turn red. The researchers believe that male red dragonflies may have more antioxidants that cause reducing reactions in their bodies, so they can reduce the oxidation of ultraviolet rays and other rays when exposed to sunlight.

    This is the first time that scientists have confirmed the changes in pigments in redox reactions in animals, which is expected to be applied to the development of antioxidants.

    The meaning of the red dragonfly is that it has two meanings, one symbolizes the elimination of pests, and the other represents festivity, auspiciousness, and also means "victory".

  2. Anonymous users2024-02-10

    I remember when I was a child, there were many kinds of dragonflies, flying on the grassland in the village every evening, especially a small red dragonfly, which was the most, and we caught them with bamboo brooms and nets that jumped up with bamboo poles, and put them in the mosquito net together with fireflies, which felt particularly good. There is also a reminder that the larger dragonflies, with blue bodies and a large square head, are also the ones we prefer to catch, but the number is relatively small, and they often move near the water.

    Each dragonfly has its range and time, and in my memory, the red dragonfly is the most numerous.

  3. Anonymous users2024-02-09

    Pygmy dragonflies.

    Common Dragonfly Species:

    1.Frost-white dragonfly, the adult frost-white dragonfly has a blue-gray thorax with a slight purple tinge, a red abdomen, and a little white powder on the thorax and abdomen of mature individuals. In Taiwan there is another subspecies, the Sirian species. It is only distributed in the corners of the border, and there is no one on the main island of Taiwan.

    2.The thin-winged dragonfly, the most common and most abundant species in Taiwan, can be seen flying in the sky in flocks in autumn. The wings are transparent, the wings are orange, and the belly is orange-red.

    3.Lexian dragonfly has black compound eyes, dark blue thorax, black belly, transparent wings, brown spots on hind wings, and black-brown wings.

    4.Purple-red dragonfly with red belly eyes, reddish-purple thorax, purplish-red abdomen, dark orange spots at the base of the wings, and red wings.

    5.Red dragonfly, red dragonfly is almost bright red all over, with transparent wings and a slight orange base.

    6.Brown-spotted dragonfly with brown thorax, transparent yellow-orange wings, and orange-red wings.

    7.Pygmy dragonflies , pygmy dragonflies have gray-blue bodies and thin bellies, which can be distinguished from thick-rumped dragonflies.

    8.Thick-waisted dragonfly, the adult body of the thick-waisted dragonfly is light blue and has many black markings, and the abdomen is 2 5 distended, hence the name.

    9.The fickle dragonfly has a reddish-brown thorax, a red belly, a dark red area of the wings 3 4, velvety, and red wings.

    10.The thorax and abdomen of the winged dragonfly are black, and the abdomen will have blue-gray powder.

    11.Juniper dragonfly with dark green compound eyes, transparent wings, and yellowish-brown wings. The abdomen is distended like a ball in the 1st and 3rd segments, and suddenly thinner after the 4th segment, and only the 7th and 10th segments are slightly enlarged again, and the anal appendage is white.

    12.This species mainly inhabits the whole island of Taiwan below 1000 meters above sea level, and the adult appears in April and November. Adults have green compound eyes, yellow-green heads, black spots in the shape of "gong" on the upper part of the forehead, and green chest.

  4. Anonymous users2024-02-08

    Red dragonflies are non-venomous. Normally, dragonflies do not contain toxins, and dragonflies are gentle on large mammals and will not bite as long as they do not actively attack. Dragonfly, also known as lamplight, grasshopper, dragonfly, fly, beneficial insect.

    Common dragonflies such as blue-faced dragonflies are distributed in Zhejiang, Sichuan, Guizhou and other provinces, long-mole green dragonflies are distributed in North China, and jade-banded dragonflies are only distributed in Beijing, Jiangsu and Fujian. <

    Red dragonflies are non-venomous. Normally, dragonflies do not contain toxins, and dragonflies are gentle on large mammals and will not bite as long as they do not actively attack. Dragonfly, also known as lamplight, grasshopper, dragonfly, fly, beneficial insect.

    Common dragonflies such as blue-faced dragonflies are distributed in Zhejiang, Sichuan, Guizhou and other provinces, long-mole green dragonflies are distributed in North China, and jade-banded dragonflies are only distributed in Beijing, Jiangsu and Fujian.

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

    "Dragonfly dotting water" is a biological characteristic of dragonflies laying their eggs in water. The larvae (larvae) live in water and live for a period that varies depending on the species, ranging from 2 years to 3 to 5 years. [3] It can be used to monitor environmental pollution, and has medicinal, edible, and ornamental value.

  5. Anonymous users2024-02-07

    Song Title: Red Dragonfly.

    Composition: Tsuyoshi Nagabuchi.

    Lyrics: Li Ziheng.

    Original song: Tsuyoshi Nagabuchi.

    Lyrics: Fly, fly, see the red dragonfly fly in the blue sky, the game keeps chasing his dream in the wind, the sky is the eternal home, the earth is his kingdom, flying is life, our childhood is like chasing the wind blowing from growth, gently blowing dreams slowly into the air, the red dragonfly is my little hero when I was a child, I hope to fly with it one day, when there are more and more troubles, glass marbles are getting fewer and fewer, I know that I have grown up slowly, the red dragonfly has been a time, and it has slowly disappeared in my years, We have all grown up, and many dreams are flying, just like the red dragonflies we saw in childhood, we have all grown up, and many dreams have to fly, just like the red dragonflies in our minds now, <>

  6. Anonymous users2024-02-06

    You're talking about red dragonflies, there are many types of dragonflies, there are also green dragonflies, some dragonflies are red, this is because this kind of dragonfly contains phythanthin, and some dragonflies are green, because this type of dragonfly contains phycyanin in their body. That's why the colors of the dragonflies will be different.

  7. Anonymous users2024-02-05

    This is because this type of dragonfly contains in its bodyParanthin. And some dragonflies are green because they contain phycyanin.

    That's why the colors of the dragonflies will be different.

  8. Anonymous users2024-02-04

    The blue dragonfly is common, the yellow kind of stunned, the dragonfly, very common, usually on that tree.

  9. Anonymous users2024-02-03

    There are red, cyan, green, and gray white dragonflies.

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