Divided-tergum-x
Guides
Ochrotrichiinae
microcaddisflies
Ochrotrichiinae is a subfamily of microcaddisflies within the family Hydroptilidae, comprising approximately 430 species across nine genera. The subfamily is most diverse in the Neotropics, with additional representation in the Nearctic and Australasian regions, including an endemic genus in New Caledonia. Phylogenetic analyses support its monophyly with the exclusion of Dibusa. The subfamily originated in the New World during the early Cretaceous, approximately 116 million years ago, with subsequent dispersal to Australasia via trans-Antarctic routes.