Although the mimicry is not easily apparent when resting, the blister beetle Pleuropasta mirabilis when running forwards resembles a painfully-stinging red harvester ant dragging a seed backwards. Anza Borrego, California, USA.
Blister beetles in the genus Nemognatha have elongated mouthparts for sipping nectar. This individual was photographed in an American basket flower, Centaurea americana. Stengl Lost Pines Biological Station, Texas, USA.
A native harvester ant fights with introduced Argentine ants (Linepithema humile) in northern California. Davis, California, USA.