Limited to the North Island and and its offshore islands (Fig. a).
Austroponera castanea
On both islands. On the South Island distribution is restricted to Nelson and Marlborough and to the West Caost as far south as Haast (Fig. b).
Austroponera castaneicolor
Fig. a Austroponera castanea profile. Image: Ryan Perry (Specimen: CASENT0249168). www.antweb.orgFig. b Austroponera castaneicolor profile. Image: April Nobile (Specimen: CASENT0172339). www.antweb.org