Cicada pupae and silkworm pupae are two different insect larvae that have some differences in appearance, living Xi, and ecological roles.
In appearance, cicada pupae are cicada larvae that resemble pupae in shape, usually translucent yellowish-white or brown, with a thick middle body and relatively slender ends. Silkworm pupae are the larvae of silkworm moths, which are oval in shape and smooth in appearance, usually yellowish-white or white.
In terms of living Xi, cicada pupae belong to completely ** insects, and their larvae spend many years of development in the subsoil, sucking rhizome sap as their main food, and adults chirp most of the time in trees. Silkworm pupa is not an incomplete ** insect, its larvae grow up eating mulberry leaves on mulberry trees, and then depending on the species, they will go through 4 to 5 molts and become pupae.
In terms of ecological role, cicada pupae are relatively common in spring and summer, and cicadas are an important climate indicator organism, and their calls can be used to predict changes in temperature and environment. Silkworm pupae is an important economic insect in the world, used for the production of silk thread, and is the world's main silk raw material.
According to the above description, cicada pupae and silkworm pupae are very different in appearance, life Xi and ecological roles. 
If you know any other differences, please leave a comment in the comment area and thank you for your support!