Ant key 27
| Upper plate of second segment of gaster strongly arched so that it forms the rear-most part of the gaster when viewed from the side, and short 9-segmented antennae (but appears <9), with apical segment greatly enlarged (Fig. a). |
Discothyrea antarctica |
| Upper plate of second segment of gaster only weakly arched (Fig. b), and 12-segmented antennae. Apical segments either not enlarged or more than 1 segment enlarged. |
28 |
