The holotype was collected in 1991 from a drainage area of the Waipati stream, a tributary of the Maerewhenua River.
The line had not reached Duntroon; it terminated on the opposite (east) bank of the Maerewhenua River due to bridging difficulties.
Mississippi River | River Thames | Amazon River | Columbia River | Hudson River | Colorado River | Potomac River | river | Ohio River | Missouri River | Delaware River | Murray River | River Tyne | Madeira River | Volga River | River Nene | River Clyde | River Trent | River Severn | Amur River | River Wear | Allegheny River | Red River | Dnieper River | Yarra River | Paraná River | River Tees | Fraser River | Yangtze River | Tocantins River |
Construction commenced in 1879, the Maerewhenua River was bridged on 2 July 1881, and when the Waitaki River was bridged on 7 November 1881 the line was completed to Hakataramea, 1.76 km beyond Kurow by rail on the northern side of the Waitaki.