Mealybug

Mealybugs are insects in the familyPseudococcidae, unarmored scale insects found in moist, warm habitats. Of the more than 2,000 described species, many are considered pests, as they feed on plant juices of greenhouse plants, house plants, and subtropical trees and also act as a vector for several plant diseases. Some ants live in symbiotic relationships with them, protecting them from predators and feeding off the honeydew that they excrete.