We often say that Tenebrio molitor is a common pet feed, but Tenebrio molitor is a larval stage, while silkworm chrysalis is a pupal stage, which does not belong to the same period and is not comparable.

But silkworms are LEPIDOPTERA (such as butterflies and moths) and breadworms are COLEOPTERA (such as beetles), so Tenebrio molitor has hard armor on its body surface, but silkworms don't. Silkworms can spin silk to make cocoons, and then pupate in cocoons, while Tenebrio molitor can't spin silk and pupate directly in hidden places.

In contrast, the use of silkworm is relatively large, cocoon is the main raw material of silk, and silkworm excrement is also called silkworm excrement, which is often used as pillow filler and has health care function; Tenebrio molitor is a kind of "high protein" feed, which is very good for raising animals, and sterile Tenebrio molitor can even be eaten by people.

Although silkworms are versatile, they are also difficult to serve, more difficult to raise than Tenebrio molitor, who eats almost everything, including vegetables, bread, all kinds of rice and even fish food, so it is easy to raise.

I hope my answer is helpful to you!