分为两个下目，即：除却Scopuridae应被包括在北翅亚目的基群科，但未能安排到任何一个下目之外，其余分类单元均与系统发生树相对应。Alternatively, the Scopuridae were placed in an unranked演化支"Holognatha" together with the Euholognatha (meaning roughly "advanced Holognatha"), but the Scopuridae do not appear signific