"Insect Scripture" records hundreds of extraordinary insect beasts such as Iron Fire Ant, White Jade Mantis, Six-Winged Millipede... Mostly first and second-grade, and only a few of the third-grade at the Foundation Establishment level.
The pale green toad that Lu Xuan encountered in the Spirit Plant Garden is also among them, known as the Wood Poison Toad. It is a demon insect rich in Wood-element Spiritual Energy, and it feeds on demon beasts, with a particular fondness for mimic worms.
It can change its own shape and body color according to the surrounding environment to hide itself. Its poison is extremely strong; the venom of a fully developed Wood Poison Toad can even threaten Foundation Establishment Cultivators.
Lu Xuan briefly skimmed through "Insect Scripture", learning about many methods of breeding, reproduction, and control of demon insects.