What are the characteristics of dragonflies when it rains?
When dragonflies fly in groups at low altitude, it indicates rainy weather. This is because the air humidity at this time is high, the wings of small insects are very wet, and they cannot fly high, and dragonflies are feeding on small insects. At this time, it is a great opportunity for dragonflies to hunt.
Based on these characteristics of dragonflies, people have concluded some rules: before and after the Minor Heat, red dragonflies fly in groups at low altitude in the fields, indicating that drought and high temperature will soon come. Around the beginning of autumn, yellow dragonflies hover low over the fields, which means that there will soon be a period of continuous rainy weather.
Life habits of dragonflies
Dragonflies like humid environments, so they usually fly around ponds or rivers, and their larvae (larvae) also need to develop in water. Insects of the order Odonata have hemimetamorphic development and have only three stages in their lives: eggs, larvae and adults. Adults often lay eggs into the water by tapping them with dragonflies. Larvae, also known as waterhoppers, prey on other aquatic organisms in the water and crawl out before emerging. They emerge from the water, mate and lay eggs to complete their life cycle.
In addition to preying on various other insects, dragonflies also have the habit of cannibalizing adults among species. When hunting, they will grab their prey violently, and the large amounts of coarse hair on their feet can help it grip the prey so that it cannot escape. The mouthparts are also quite developed and can bite prey, making it easier to eat. It can eat food equal to its own body weight in 30 minutes.