Formica aserva & Formica moki
McLaughlin U.C. Reserve, Lake Co., California, USA

photograph © Alex Wild 2003

Formica aserva, shown here on the right and far left, are slave-raiding ants.  They conduct raids on the nests of other Formica species, bringing back pupae which later emerge and perform work in the raiders' colony.  Nests nearly always are of mixed composition.  In this case they have "enslaved" Formica moki.

This image is copyrighted by the photographer and cannot be used without permission. To obtain permission to use this image, please email Alex Wild. (alwild (at)  Most of the photographs on are reduced from their original size and compressed for more efficient web transmission.  In some cases, higher quality versions are available.

This image was captured with a Canon EOS D60, with a Canon 65/2.8 MPE 1-5x Macro lens.