The family Psyllidae includes a diverse group of small, jumping insects commonly known as plant lice or psyllids. These insects are often considered pests as they feed on the sap of various plants, causing damage to the foliage and stunting growth. Synonyms for the family Psyllidae include jumping plant lice, jumping plant bugs, and jumping plant hoppers. While they may differ in appearance and behavior, all members of this family use their powerful legs to jump from plant to plant. Other related families include aphids, whiteflies, and mealybugs, all of which are known for their detrimental impact on crops and ornamental plants.