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is the name of an insect, but not intended to attack people.
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Dragonflies are also known as Tintin, Lamplighter, Grasshopper, and Labor.
Dragonflies, invertebrates, phylum Arthropods, Insecta, Winged subclasses, Dragonflies, Paraptera, Dividing Dragonflies and Flyflies. Generally large, with long, narrow wings, membranaceous, and extremely clear veins in the reticulated wings. Extremely sensitive vision, 3 town ants in one eye; antennae 1 pair, thin and short; Chewing mouthparts.
The abdomen is elongated, flattened, or cylindrical with an anal appendage at the end. The feet are thin and weak, with hooked spines that catch pests while flying through the air. The larvae (larvae) develop in water and breathe with the rectum and tracheal gills in the water.
Generally, it takes more than 11 molts, 2 or more years to crawl out of the water along the aquatic weeds, and then finally molt and emerge into adults.
In the water, larvae can prey on animals or other small animals, and sometimes cannibalism of their own kind. Adults generally fly in ponds or rivers to prey on flying insects. In addition to a large number of mosquitoes, flies and other harmful insects, some can also prey on butterflies, moths, bees, which are beneficial insects.
There are more than 5,000 known species of dragonflies.
The distribution of dragonflies is as follows:
Common dragonflies such as blue-faced dragonflies are mostly distributed in Zhejiang, Sichuan, Guizhou and other provinces; The long mole green fly is distributed in the area of Yutong buried in North China; Yellow dragonflies are distributed in many provinces, municipalities and autonomous regions across the country; The jade-banded dragonfly is only found in China, mainly in Beijing, Jiangsu, Fujian and other provinces, municipalities and autonomous regions. <>
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1. Dragonfly is a general name for invertebrates, insects, dragonflies, and suborder Alterptera.
2. The base of the hindwings is slightly larger than the base of the forewings, and the wing veins are also slightly different. When resting, the wings lie flat on the sides. The larvae are short and thick, with rectal gills and no caudal gills.
There are 3 general departments, including Aeshnidea, Cordulegastroidea, and Libelluloidea, with a total of 11 families. Flyflies and dragonflies are the most common and are widely distributed throughout China.
3. 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. It can be used to monitor environmental pollution, and has medicinal, edible and ornamental value.
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