Figures 1-14. Stereo pair images of casts of the nests of Odontomachus brunneus. With a stereo viewer, or with proper ocular technique, these images can be seen in three dimensions. Figures 15-17. Stereo pair images of metal casts of Odontomachus brunneus. These casts were not used for measurement or census but originated in the same area as the casts shown in Figures 1-14. Figures 18-19. Casts of Odontomachus brunneus nests made in a different location and not used for measurement or census in this study.