[1] Occultastella is sister to the Rhaphidophoridae species endemic to the Snares Islands (Insulanoplectron spinosum).

Occultastella morgana is approximately 11 mm (0.43 in) in length, with its antennae being longer than its body.

The head of the species has a distinctive cream/white candle flame marking on each side of the midline of the pronotum.

[1] Occultastella morgana was originally found in the coal seam soils of the Denniston Plateau in the West Coast Region of the South Island of New Zealand,[3] and can be found in the northwestern South Island, including Kahurangi National Park and the Westport area.

[1] Trewick was surprised to find a new genus on the Denniston Plateau, due to the history of coal mining had on the local ecosystem.