Crayfish is a delicacy found all over China, and the taste and flavor of crayfish in different cities and crayfish producing areas are also different. The following are some famous crayfish producing areas and cities:

1. Qianjiang: Qianjiang City, Hubei Province is one of the famous crayfish producing areas in China. Qianjiang crayfish is very popular among diners because of its delicious taste and tender meat.

2. Xuyi: Xuyi County, Jiangsu Province is one of the famous crayfish producing areas in China. Xuyi crayfish is full of meat and delicious, especially the crayfish with thirteen flavors is a special food of Xuyi.

3. Hongze Lake: The crayfish located in Hongze Lake area of Jiangsu Province is delicious and tender, especially the lobster in Hongze Lake is also called Xuyi lobster, which is very popular.

4. Shanghai: Shanghai is one of the major cities for crayfish consumption in China. There are many famous crayfish restaurants, such as Shrimp Mantang, Xiangba Island and Houwei Spicy Restaurant.

5. Beijing: There are also many famous crayfish restaurants in Beijing, such as spicy temptation, Dadong barbecue and Yaoji braised chicken.

To sum up, crayfish in different cities and producing areas have different tastes and flavors, and diners can choose crayfish that suits them according to their own tastes and preferences.