The larva of the robin is called the cicada pupa, also known as the "robin monkey" in dialect.

Cicada pupae contain not only amino acids and proteins, but also their own secondary metabolites, which are harmless to humans. If people want to take insects, they should eat the larvae whenever possible, as they do not have a more complex structure and are simpler to take. Many bugs that people have been eating for decades, even centuries, are empirically harmless.

Expanded:

Many people think that robins are pests, that they thrive by sucking the sap out of trees, and that they are harmful to trees. In fact, although robin monkeys have an effect on tree growth, we have not heard of any cases of robin monkeys causing tree deaths so far.

On the contrary, the monkey is a link in nature's biological chain, and it is food for praying mantis as well as insectivorous birds, which originally formed a relatively harmonious biological chain. If a large number of them are captured artificially, it will in turn disrupt this balance and lead to a series of undesirable chain reactions.

Most insects are rich in protein and are more nutritious than fruits and plant roots. The larvae of certain bugs are also high in amino acid proteins. However, the protein needed by the body can be supplemented by other substances. Amino acids are found in every species, but there are differences, and there are also some that are secondary metabolites, and it is debatable which are beneficial and which are harmful. In fact, our ordinary recipes, with balanced nutrition, can adequately replenish these amino acid proteins as well. In essence, there are no irreplaceable nutrients in insects.

Baidu Encyclopedia - Cicada Chrysalis

People's Daily Online - Have you ever eaten a "monkey"?