Formica fusca queen and workers in the nest. Sagehen Creek, California, USA
Male and female Forelius mccooki in the nest. Tucson, Arizona, USA
Gnamptogenys mordax queen and worker. Notice that the queen has a larger, more complex thorax. She begins her adult life with wings for dispersal, so she bears all the sclerites and musculature associated with flight. The flightless workers have a simpler anatomy. Venezuela
