Lasiocampoidea is the superfamily of "lappet moths", containing two families of small to very large moths. Lasiocampidae have a global distribution, whilst Anthelidae ("Australian lappet moths") are found only in Australia and New Zealand. There are about 158 genera. See Lemaire and Minet (1999) for a detailed overview.
The group is closely related to the Bombycoidea and sometimes merged therein.
Lemaire, C. & Minet, J. (1999). The Bombycoidea and their relatives. Pp. 321-353 In: Kristensen, N.P. (ed.), Lepidoptera, Moths and Butterflies, 1: Evolution, Systematics, and Biogeography. Handbuch der Zoologie 4 (35): 321-353. Walter de Gruyter. Berlin, New York.