The Pediciidae and Tipulidae are sister groups (the "limoniids" are a paraphyletic clade) and the Cylindrotominae appear to be a relict group that was much better represented in the Tertiary.
Os Pediciidae e Tipulidae son grupos irmáns (os "limónidos" son un clado parafilético) e os Cylindrotominae parecen ser un grupo relicto que estaba moito mellor representado no Terciario que hoxe.