Flying insects are everywhere on the Yuanjiang Bridge in Hunan. Do these flying insects pose a threa

The Yuanjiang Bridge in Hunan is covered with flying insects. These flying insects do not pose a threat to farmland.

Over Yuanjiang City, Yiyang City, Hunan Province, dense white insects appear as if there has been a heavy snowfall. According to relevant entomologists, This kind of bug is called a mayfly.

According to media reports, when the Xinhua Rescue Team of Yuanjiang City arrived at the Huangmaozhou Bridge in Yuanjiang City that night, they saw that the corpses of mayflies had piled up more than ten centimeters, and cars were skidding while driving on the bridge. They cleaned up for a total of 9 hours before returning.

Mayflies, commonly known as "Yiye Lao", have ancient and special shapes and are the most primitive winged insects. Mayflies live in freshwater lakes or streams. In spring and summer, from afternoon to dusk, there are often a group of male "nuptial flights", and the female will fly alone to the colony to mate with the male.

The adult worm does not eat and only has a lifespan of one day, but in this short life, it blooms brilliantly. After the adult mayfly molts, the digestive tract will be filled with air. Before the final molt, its end will automatically heal and become a sealed intestine.

Because the inside is filled with air, this also allows the larvae to float to the surface easily. Adult insects do not eat, are phototactic, and are often found under lamps. They have a short lifespan, generally only living for a few hours to a few days, so there is a saying about mayflies: "live and die". ?

Mayfly larvae mainly inhabit a variety of freshwater environments. Most of them inhabit living water with moderate temperature and constant flow. A few can survive in salt water, and one can survive on land. The adults It is to live in a flying way.

The presence of mayflies can be used as an important criterion for identifying the quality of water bodies. The famous Dutch biologist Jan W. Maidan described a kind of mayflies in detail in 1675. There were a large number of mayflies in the Netherlands at that time, but now the entire There are no traces of this mayfly in Western Europe. The reason is that the mayfly larvae are sensitive to the environment.

With air conditioning. According to information from the official website of Yuanjiang No. 3 Middle School in Yiyang City, the dormitory of Yuanjiang No. 3 Middle School in Yiyang City is the second home for students, providing a comfortable living environment that is conducive to students' physical and mental health and positive attitude towards life. The No. 3 Middle School of Yuanjiang City, Hunan Province is located at No. 96, Shangxue Road, Huangmaozhou Town, Yuanjiang City, Yiyang City, Hunan Province.