A revised classification of the jumping plant-lice (Hemiptera: Psylloidea) Author Burckhardt, Daniel Author Ouvrard, David text Zootaxa 2012 3509 1 34 journal article 10.5281/zenodo.209825 565e26ec-408a-414f-bd9b-e17df745aa30 1175-5326 209825 16A98DD0-D7C4-4302-A3B7-64C57768A Aphalaridae , sensu novo Aphalarinae Löw, 1879 : 606 . Diagnosis: Adult metatibia with an open crown of sclerotised apical spurs (sometimes grouped). Larva without or with lobed tarsal arolium lacking unguitractor. Internal phylogeny: The Aphalaridae contains five probably monophyletic subfamilies. Adult Rhinocolinae , Spondyliaspidinae and Togepsyllinae lack a horn-shaped meracanthus, which is usually tubercular but sometimes knob-like. This may constitute a synapomorphy grouping the three subfamilies. In Aphalarinae and Pachypsyllinae the meracanthus is well-developed and horn-shaped.