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The typical form of this species was originally described from. Kamerunga, Queensland, but seems to be widely distributed in Australia. Forel has recorded it from Adelaide, South Australia (E. Mjöberg ), and I have seen specimens taken by Mr. A. M. Lea at Port Lincoln and Gawler in the same commonwealth . Emery gives the length of the type specimen as 2.75 mm. My specimens are somewhat larger (3.2 mm.) and Forel's measured 3-3.2 mm. The petiole when viewed from above is decidedly broader than long, the postpetiole and gaster are decidedly shining, the former densely punctate, with superimposed, scattered, larger punctures, or foveolae, which have sharp anterior borders so that they are somewhat "eingestochen", to use a German expression. The color appears to be rather variable, the gaster being sometimes dark brown like the head or like both the head and thorax, sometimes paler brown with only the head dark.
Fig. 2. Acanthoponera (Anacanthoponera) imbellis Emery HNS , worker, a, head from above b, thorax and abdomen in profile.