First of all, eating earthworms (no matter which species in China) is harmless. Because eating them raw is almost harmless except hygiene. Now, there is a saying that "fried earthworms" are earthworms ... If you eat them later, you can add a few drops of vinegar to clear water and soak the live earthworms for a long time, which is called vomit.
Locusts are even more harmless. Eating locusts is very popular now.