What are two possible changes that might occur in a green insect species if the green grass it uses for camouflage turns brown due to drought

I guess evolution could eventually occur causing the insect species to darken but since it's a drought it's probably a short period

another thing is the species is hunted and dies out. their source of camouflage is gone leaving them out in the open for predators

the trilobite is used as an index fossil for various geologic time periods as specific types of the trilobites were present in different geological time periods. they are a group of marine arthropods belonging to the class of trilobita.

explanation: