Does anyone know anything about fireflies?

Text/Wang Ling

Fireflies belong to COLEOPTERA and fireflies, and there are about 265,438+000 distant relatives or close relatives in the world. 76 species have been recorded in China. Firefly is a magical and beautiful insect with a blue-green luster on its slender and slightly flat body. The back plate of the chest is flat and wide, often covering the head. There are three pairs of slender crawling feet. The developed tail is like a fan, which is usually folded under the front wing and unfolded only when flying. Not all fireflies can shine. They go through four different insect states: egg, larva, pupa and adult.

Fireflies like to live in wet, watery and overgrown places. There is a saying that "rotten grass breeds fireflies". Fireflies don't feed, they just take water. The females appeared more than a week later than the males. After eclosion, it flashed by, looking for a mate.

In the summer evening, in the grass of the mountain stream, fireflies fly around in the air with small lights, causing people's infinite thoughts and love.

"Silver candle Qiu Guang painted a cold screen and a small fan flew to fireflies." This is the poet Du Mu's portrayal of fireflies.

Terrestrial firefly larvae feed on snails. The plant in the photo is aunt taro, which is the favorite habitat of snails.

It is easy to attract the predation of firefly larvae, which is the food chain of nature.

(Reporter Li Wenxin/Photography)

Fireflies belong to COLEOPTERA, and go through four stages in their life: egg stage, larva stage, pupa stage and adult stage.

Stage, completely abnormal insects. Its growing period is quite long, and most species are 1 year and 1 generation.

The larval stage is as long as 10 month, while the adult only has a short life span of about 20 days.

★ "The Light of Fireflies"

Fireflies glow because there is a gland in the body, which contains fluorescein, which is produced by luciferase.

Produced by oxidation; The light of fireflies belongs to cold light and will not burn people. Its luminous purpose is twofold:

1. Warning: Fireflies blink in an emergency, warning the enemy not to approach, so as to drive away.

2. Courtship: Female insects in adult stage usually live among grass leaves and do not fly; In addition, some kinds of women are huge.

Large, wing sheath degeneration, unable to fly; Therefore, courtship and mating between the same species can be achieved by rhythmic flashing signals.

Mission.

★ "Sex of Fireflies"

Larval fireflies are hard to distinguish between male and female; Some fireflies can be identified by the size of their wing sheaths in pupal and adult stages.

Female fireflies are usually slightly larger than male fireflies, because female fireflies have to lay eggs and their bellies will be larger than male fireflies; The light emitter has

Two rows of light are male insects, and one row of light or spotlight in the illuminator is female insects, because male insects should have greater absorption of luminous brightness.

Attract the attention of female insects, so the brightness is greater than that of female insects; Male compound eyes are more developed and bigger than female compound eyes.

★ Protect yourself and protect insects.

Enjoy fireflies happily, but if you love them, protect them and protect yourself. Ocean University is held from April to June every year.

Longgang Trail on campus has a large area of good places to watch fireflies, so it provides people with relevant information and hope to watch fireflies.

Watch together and enjoy fireflies happily.

The best time to watch fireflies: fireflies appear periodically, but adults generally don't appear for a long time.

Nocturnal fireflies start to move after sunset, so the best time to watch fireflies is 6: 30 in the evening.

Slowly, leave at 9 o'clock.

The best weather to watch fireflies: full moon, rainy night or after the earthquake is not suitable for watching fireflies, and the best time is at the beginning of the lunar calendar.

Or the end of the month, or the weather with thick clouds, because the full moon is too bright, it will affect fireflies, heavy rains and earthquakes.

It is easy to be in danger of loose earth and stone, so we should pay attention to it.

Look at the safety equipment of fireflies: the sight of fireflies is poor at night, and some protective measures must be taken, such as wearing them.

Wear trousers and long sleeves to prevent mosquito bites, try to wear cloth shoes or rain boots to prevent snake invasion, and prepare to take pictures.

Flashlights should be covered with red cellophane, or painted with red pigment on the lampshade, because red light is not that important to fireflies.

Influence, strong light will hurt the eyes of fireflies and prevent them from courtship.

In addition, don't catch fireflies, otherwise it will affect their reproduction.