1, two mealybugs make a pair, and two pairs means four.

2. Mealybugs are dried geckos, also known by their scientific name, the giant gecko. This is a wild animal made of medicinal herbs, because of the efficacy of a wide range of so in the prescription is very commonly used, but the big gecko is more and more rare, has become a wild protected animal, so in the prescription is also less and less.