John Stewart Dugdale was a New Zealand entomologist known for his contributions to knowledge about New Zealand lepidoptera, as well as tachinid flies and cicadas. He published extensively and his 1988 publication on New Zealand moths and butterflies, Lepidoptera - annotated catalogue, and keys to family-group taxa, is still regarded as a landmark publication as it updated the classification of New Zealand Lepidoptera species known at that point in time. He has had two genera and numerous species named in his honour.