Among the 21 exotic species suffered by our country, the crayfish can be counted as the number one, it is native to North America, inadvertently brought into China, attracted a large number of fans, set off a crayfish wind, once led to extinction, after years of evolution, now has become an important economic breeding species in China, every hot summer, the food stalls will always be full, crowded with crayfish lovers, or steamed, or fried, or braised, in addition to eating shrimp paste, and finally suck a bite of crayfish soup, it is perfect, in fact, in China, We also have a native crayfish, its name is lagu, and it is hundreds of years old, and the southern crayfish, and it is simply incomparable.
Caddisflies, listening to the name is very familiar, home in the countryside of the small partners know, in the field there is an insect, also called the cockroach or the cockroach, they are just the same name, not a family at all, today to introduce is the northeast native species, also called the northeast black shrimp, belongs to the original shrimp genus of "relatives", distributed in Jilin, Liaoning, Heilongjiang and other places, especially in the life of The Jilin people, everyone knows, its head is like a crab, the tail is like a shrimp, the water quality requirements are extremely high, if the water quality is destroyed, the cockroach changes a large area of death, From a point of view, the cockroach is much more "clean" than the crayfish.
Crayfish have almost no requirements for the water, even in polluted waters, can also tenacious survival, and the scorpion and it formed a sharp contrast, it likes living water, like rivers, streams are OK, feeding is too difficult, feeding shrimp food it almost does not eat, the most love red worms, earthworms, small fish, with the destruction of habitat, the current number of earthflies is decreasing year by year, almost endangered.
The cockroach grows in the Changbai landscape system, in ancient times as a tribute food, only the emperor's court can enjoy the food, much higher than the crayfish, its color is brown, not the red of the crayfish, the body size is slightly smaller, growing in the northeast of the small partner, especially in Jilin, Liaoning, after school can touch a string of cockroaches, and now everywhere is fertilizer, pollution, pesticides, make the smelly sky, may also be the cockroach too love to clean, in case of pollution is dead.
Some people say that although the cockroach is similar to the crayfish, it is not a thing at all, just like wild ginseng and farmed ginseng, the edible value is different, crayfish do not add pepper you try, what is the taste? And the delicious taste of the caddisflies, it is incomparable, as long as there is a source of pollution nearby, the caddisflies within a radius of five kilometers will all die, so that the price of the cockroaches is not marketable, 200 yuan a pound can not be bought, listen to the old people in the village said, about 1993, the cockroaches disappeared overnight.
If you want to eat the cockroaches, you can only go to the unpolluted Changbai Mountain area, it is an authentic domestic species, not an exotic species, to say that the best way to eat, and Qianlong Ye can also have a little relationship, a delicious "cockroach tofu", has been in Jilin, applied for intangible cultural heritage.
After the spitting treatment, just like grinding soy milk, the cockroach is crushed into a pot of brown liquid, and then burned with a pot of boiling water, the liquid is slowly poured in, and when the temperature rises slowly, the liquid will slowly float and form, changed to a low heat and slow stew, put in coriander, sesame sesame oil, spring onions, refined salt seasoning, a pot of delicious, smooth and delicious tofu, it is made.
Qianlong Emperor of the Qing Dynasty toured the east, in Jilin first ate tofu, suddenly felt the afterscent of hanging teeth, dragon heart great joy, there is tofu in the name but no tofu, Qiye ~!
In addition, it can also be steamed, braised to eat, this kind of river fresh shrimp, the taste is very delicious, if you encounter it outside, be sure to buy some to taste, although it is similar to the shape of crayfish, but the taste is a thousand times more delicious.
Although the crayfish is similar to the cockroach, but the difference is quite large, just from the water quality requirements, the requirements of the cockroach are higher, must be clear living water, the diet is mostly based on insect fish, and the crayfish is a scavenger, almost not picky eaters, in the case of opportunities, you must taste the delicious taste of the cockroaches.