The Arctoperlaria, though, have been divided into two infraorders, the Euholognatha (or Filipalpia) and the Systellognatha (also called Setipalpia or Subulipalpia).
Os Arctoperlaria foran divididos en dúas infraordes, os Euholognatha (ou Filipalpia) e os Systellognatha (tamén chamados Setipalpia ou Subulipalpia).