This species is found in leaf litter of rainforest in South East Queensland.The specific name is in honour of Save Our Waterways Now Inc (also known as SOWN) a community organisation working to restore the habitats of creeks and waterways in the catchments of Enoggera, Ithaca and Fish Creeks in Brisbane's north and west. As a Goblin Spider it belongs to a diverse group of Australian ground spiders, recognised by their six eyes and their dark red-brown scutae, or clamshell styled abdomen. The genus Opopaea has a club-shaped palpal patella and a cymbium fused to the bulb unique for this genus. ♀ 1.15mm ♂ 1.12mm