Cockroaches are a small order of insects, currently only 27 species in the world, distributed in only a few countries. The order Plesiosaurus is the only ancient remnant taxon, a living fossil of insects. There are only two kinds of insects that are protected in China, except for the Chinese national butterfly, the golden-spotted beaked phoenix, which is the Chinese cockroach.
In the past, when cockroaches were found in any country, they would cause a lot of shocks in the biological world. But for a long time, cockroaches have not been found in China.
In those years, many entomologists and amateurs in China have been searching in the wild, just to find cockroaches in our country, they have great enthusiasm and expectations, hoping to fill the gap in this regard.
On August 28, 1986, when experts from the Institute of Zoology of the Chinese Academy of Sciences were investigating Changbai Mountain, they suddenly saw an insect shaped like an ant crawling by, and he was like a treasure, which was the first cockroach specimen found in China's territory.
After the only male specimen was brought back to Beijing, it was identified as a new species that has not yet been described in the world. Because it is the first insect species of cockroaches in China, it is named Chinese cockroaches, which has since filled the gap of insects of this order in China.
Known as China's living fossil spirit, the Chinese cockroach develops very slowly, taking at least 7 years to have a generation, and the suitable temperature is around zero degrees, so its migration and spread are very narrow.
The Chinese cockroach is protected by the national key and has immeasurable significance for the study of the origin and evolution of insects. At present, it is distributed in The Changbai Mountains of Jilin and the Altai Mountains of Xinjiang, and it must be protected when encountered in the wild!