Originally assigned to fossil Lepidoptera; subsequently reassigned to stem-group Amphiesmenoptera (= Trichoptera + Lepidoptera), but outside the crown Lepidopteran lineage.
Minet, J.; Huang, D.-Y.; Wu, H.; Nel, A. (2010). Early Mecopterida and the systematic position of the Microptysmatidae (Insecta: Endopterygota). <em>Annales de la Société entomologique de France (N.S.).</em> 46(1-2): 262-270.