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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

See illustration showing body parts (opens new window)


D. antarctica ; click to enlarge Hypoponera eduardi

Fig. a:  D. antarctica
(click to enlarge)

Fig. b:  Hypoponera eduardi

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Invasive Invertebrates