E. aspidota is endemic in New Zealand. Meyrick stated it could be found in Wellington, Castle Hill, Mount Hutt, Dunedin and Lake Wakatipu. George Hudson added to the localities where E. aspidota could be found and included Raurimu, Waimarino, Buller River, Invercargill and Stewart Island. Hudson was of the opinion that the species was probably distributed throughout New Zealand.