Hemiptera is an order of insects most often known as the true bugs (cf. bug), comprising around 50,000–80,000 species of cicadas, aphids, planthoppers, leafhoppers, shield bugs, and others. They range in size from to around , and share a common arrangement of sucking mouthparts. Sometimes, the name true bugs is applied more narrowly still to insects of the suborder Heteroptera only.