Key to Australian Genera of Ectatomminae

1

 * Front of the head with a distinct central ridge or carina that extends, uninterrupted, from just above the mandibles to near the top of the head, this ridge generally being distinctly broader than other ridges on the head (when others are present) => Heteroponera
 * Front of the head either lacking a distinct central ridge or when one is present, it is similar in size and structure to other ridges on the head or is interrupted, especially between the bases of the mandibles, and is not continuous => 2

2

 * When viewed from above, the pronotum and mesonotum form a single, uninterrupted plate (Fig. a). First segment (coxa) of the hind leg with a tooth or spine on its upper surface near the body (Fig. b) => Stictoponera
 * When viewed from above, the pronotum and mesonotum are separated by a distinct suture so that each forms a separate plate (Fig. aa). First segment (coxa) of the hind leg smooth on its upper surface and without a tooth or spine near the body (Fig. bb) => Rhytidoponera