What is "orbiculariae"

Orbiculariae is a possible clade of araneomorph spiders, uniting two groups that make orb webs. Phylogenetic analyses based on morphological characters have generally recovered this clade; analyses based on DNA have sometimes concluded that the group is not monophyletic. , the evidence is not sufficient to decide between these competing hypotheses. The issue relates to the origin of orb webs: whether they evolved early in the evolutionary history of entelegyne spiders, with many groups subsequently losing the ability to make orb webs, or whether they evolved later, with fewer groups having lost this ability.