Why do silkworm chrysalis lay eggs soon after they break into butterflies? Do they perform behaviors similar to those necessary for other animals to reproduce?

Yes, of course there is that behavior, Khan.

Besides, it's a moth, not a butterfly.

Male and female moths mate face to face (two heads in two directions ...)

He died after giving birth. Don't frighten them when mating, or the females will bleed easily (there will be a lot of yellow and red juice).

I found these when I raised them myself, hehe.