Zephyrarchaea grayi

 Zephyrarchaea grayi, also known as the Grampians Assassin Spider, is a species of spider in the family Archaeidae. It is endemic to Grampians National Park in Australia.

Taxonomy
The holotype of the species was collected in Delley's Dell in the Grampians National Park. The specific epithet is a patronym in honor of Dr. Mike Gray, who first collected the holotype for this species.

Description
Females of the species are 3.36 mm in length.

Distribution and habitat
The species is only known to inhabit wet eucalypt forest in Grampians National Park.

Conservation
The species is a short-range endemic taxon whose range is restricted to the Grampians National Park. It is threatened by fire and climate change. A search of the type locality in 2010 after a fire failed to find any specimens.