Trichodectidae was previously classified as belonging to
Ischnocera, but
phylogenetic studies had found that group to be
paraphyletic. In 2021, de Moya
et al. proposed that Trichodectidae be split off from Ischnocera and to be put into a newly created grouping called
Trichodectera. Below is a
cladogram showing the position of Trichodectidae within
Phthiraptera: ==List of genera==