DustoxvsGrafaiai

"DUSTOX is instinctively drawn to light. Swarms of this POKéMON are attracted by the bright lights of cities, where they wreak havoc by stripping the leaves off roadside trees for food."

"The color of the poisonous saliva depends on what the Pokémon eats. Grafaiai covers its fingers in its saliva and draws patterns on trees in forests."