TL;DR: The monobasic genus 'Eucryptogona' Lower, 1901, originally placed in the Oecophoridae, is recognised as the first known Australian representative of the family Eriocottidae.
Abstract: The monobasic genus 'Eucryptogona' Lower, 1901, originally placed in the Oecophoridae, is here recognised as the first known Australian representative of the family Eriocottidae The morphology of 'Eucryptogona' is described, and a lectotype designated for its single included species, 'Eucryptogona trichobathra' Lower, 1901, known only from Broken Hill, New South Wales 'Eriocottis euryphracta' Meyrick, 1893, described from South Australia, is not an eriocottid and it is here transferred formally to the Yponomeutidae; its generic placement is, however, uncertain