ABSTRACT A new genus and species of Stenoviciidae, Pseudostenovicia evansi, is established and described based on a tegmen from the Upper Permian Belmont insect bed of Newcastle coal measures of New South Wales, Australia. There are nine species within nine genera of family Stenoviciidae, seven of which were found in the same stratum and locality. The new species can be distinguished from other species by its three-branched MP, crossvein m-cu almost in the same line with basal part of vein CuA1. The new species increases the diversity and provides more tegminal information of the family Stenoviciidae.