What is the concept of a 100 million butterflies flying together?You know when you go to Jinping, Yunnan

Butterflies are one of the familiar insects. Because of their beautiful appearance, they are loved by people. The dancing butterflies have become business cards in some places, such as the world -famous monarchy butterfly migration.

Every summer, there are countless monarchy butterflies in the forests in North America. They are spectacular when they fly, and the waterfalls falling down when they stop.

Then do we want to see if this wonders still get North America? In fact, there is no need for trouble. In Jinping County, Yunnan Province, my country can also see this amazing and beautiful landscape.

Jinping County and its Butterfly Valley

Jinping County is located in the Red River Hani and Yi Autonomous Prefecture in the southeast of Yunnan Province. It is located in the southeast branch of Laijun Mountain with a large altitude gap, a maximum altitude of 3074 meters, and a minimum altitude of 105 meters. Therefore, the climate has the characteristics of rain and warmth, and the dry and wet season is clear.

The complex climate and geographical pattern of Jinping County has created a multi -level ecological landscape, providing conditions and foundations for the diversity of high butterfly species here.

According to statistics, the butterflies that have been recorded in Jinping County have 5 grades of 137 species of 5 subjects, accounting for about 13.4%of the total number of butterfly species in my country, and with the deepening of the investigation and research, there are many new butterfly new species and new record species. Discovery one after another.

In this media report, this year, more than 100 million butterflies outbreaks appeared in Jinping County. The variety was mainly arrow butterfly North Yueyue Subs heritage and West China Arrow Diebei Subs hernis.

The butterfly danced in the butterfly Valley of Jinping County, Yunnan Province. Picture source: Gao Fei

The arrows of the north of the northern Yue and the West China Arrow Ring Butterfly North Yueyuya belong to the genus of the Flavors Flash Dieka family arrow.

The arrows of butterfly north Yueyue and West China arrow butterfly North Yueyue are large butterflies. The forefront wings are 51 mm to 55 mm long. The front wings are wide triangular, the top angle is round, the posterior edge is straight, the posterior wings are wide, and the outer edge is jagged. The front color of the front is brownish yellow, each of the patterns are black, the top corners of the front wings are black, the front and rear wings are equipped with 1 column arrow pattern, the tip is inward; The outer edge has 1 column of red round eye spots, and 2 waves of black fine lines with the outer edge.

The arrows of the northern subtype of the arrow ring and the Huaxi arrow ring butterfly North Yueyuya are very similar in appearance, but there is no obvious color difference between the front wing of the north Yueyu subcontay between the arrow ring? It can only be distinguished from these two characteristics.

The comparison chart of the arrow butterfly North Yueyue and West China arrows. Photo source: Author's picture supply

Huaxi Arrow Diebei has been adopted as a specimen as early as 1956. Due to the similar appearance, the arrow ring butterfly North Yueyan has been misunderstood as the West China Arrow Ring Butterfly Bei Yueyu. Record species publication.

The growth process of arrow butterflies is also very distinctive. From the insects to the pupae to the butterfly, they are often accompanied by the bamboo forest.

The larvae of the arrow butterfly are eaten with bamboo leaves, and the egg hemisphere is commonly produced on the bamboo leaves. The larvae have the habit of gathering on the leaf surface. The larvae head is large and black, the body is slender, light green, with multiple dark green vertical stripes, the body surface has a fine white long hair, and the pores on the side are yellow. Essence

The pupae is suspended, that is, only fixed with the tail, the pupae surrounded by wireless threads, near ellipsoids, emerald green, a yellow fine line in the middle, and 1 red dot in the middle of the fine lines, exactly like immature pulp.

The picture shows the butterflies under the leaves. Photo source: Author's picture supply

When adult feathers, the head is first drilled from the top of the pupae. After all, the legs are hung on the pupae or other fixing things with the legs. The arrow ring that just drilled from the pupae cannot fly, because its wings are humid and wrinkled into a ball. At this time, it will inject the body fluid into the wings veins to support the wings and wait for the wings to dry and harden.

Jrowth rod butterfly adults often move between bamboo forests, and most of them go up and down between trees, especially in the evening. In the evening, activities are more frequent.

Southern Yunnan Province is the only distributed area of ​​Arrow Diebei Subsums and West China Arrow Diebei Subsamic in China.

The cause of the outbreak of Jianhuan butterfly of Jinping County

The outbreak of Jianhuan butterflies in Jinping County is the result of the common role of many factors, and we have not fully revealed all the reasons for the formation of this phenomenon. However, with in -depth research, more and more causes have gradually surfaced.

First of all, the arrow butterfly is a generation of insects a year. It is a period of adults from May to July each year. An important reason for the formation of the phenomenon of the forepressant.

Secondly, a suitable habitat is also an important factor. Because the arrow butterfly likes to inhabit the warm and humid grooved valley, the number is the largest in the low -altitude saddle bottom, and the outline of the arrow butterfly here is also the most spectacular.

In addition, as mentioned earlier, the larvae of the arrow butterfly are eaten by bamboo leaves, and a large number of bamboo grows in the saddle town, which provides a food basis for the large number of arrow butterfly larvae.

In addition, factors such as temperature, precipitation and humidity will also affect the distribution and survival of the arrow butterfly, and further provide conditions for the production of butterflies outbreaks.

The picture shows the phenomenon of butterflies of Jinping County. Picture source: Zhao Yi

In fact, there are many examples of butterfly outbreaks in China, such as ordinary silk powder butterflies in Lijiang City, Yunnan Province, silk powder butterflies in the northeast, and purple spots in Guangdong Province.The outbreak of the butterfly is not a case.However, this phenomenon is the largest and most density case in the currently known butterfly outbreak phenomenon in China. Therefore, the outbreak of Jianhuan Ringhuan of Jinping County is one of the very important objects in domestic butterfly research.The formation mechanism has important value.

The dancing butterfly group is spectacular and charming, which is a great wealth that naturally gives us human beings.It is believed that with the deepening of research, we can finally solve the mysteries behind the phenomenon of the outline of the Jianhuan County of Jinping County.And this magical phenomenon will also become an important material for studying the diverse characteristics of my country and the species of Aihanshan butterfly.

Produced: Popular Science China

Author: Zhang Huihong (Yunnan University)

Producer: China Science Popularization Expo

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