Aphalarinae is a subfamily of true bugs in the family Aphalaridae, order Hemiptera. It comprises multiple tribes including Aphalarini, Caillardiini, Colposceniini, Gyropsyllini, and Xenaphalarini, with both extant and extinct genera. The subfamily contains at least 15 extant genera and several fossil taxa. Members are psyllids, a group of sap-feeding insects commonly known as jumping plant lice.