Cumulative number of valid species of Nepticulidae and Opostegidae described per year. Notice the long period that no Opostegidae were described (1935–1967) and the sudden increase in numbers of Nepticulidae since 1978.

  Part of: van Nieukerken E, Doorenweerd C, Hoare R, Davis D (2016) Revised classification and catalogue of global Nepticulidae and Opostegidae (Lepidoptera, Nepticuloidea). ZooKeys 628: 65-246.