To mark my 51st ant genus on Flickr, I have selected Opisthopsis, the strobe ants.
I am processing (read=deleting ~70% of Opisthopsis images!) pictures of the really cool large-eyed ants. I saw them the first time in Alice Springs in 2003, then in Kings Canyon and subsequently in Brisbane, Gilgandra and all the way up north to Cape Tribulation and Townsville. They are unusual among ants, because of the placement of their eyes towards the posterior region of the head. Typically in ants, eyes are placed laterally and/or frontally. This peculiar placement of the eyes gives Opisthopsis ants a very unique visual field that includes areas even behind them. More about these cool ants when I update the Flickr gallery.