 | 750-23. Entrance hole of a large sand mound of red harvester ants (Pogonomyrmex barbatus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 24, 2009Similar picturesSmall thumbnails | Use large thumbnails | View as slideshow |
| 750-23. Entrance hole of a large sand mound of red harvester ants (Pogonomyrmex barbatus) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 24, 2009Similar picturesSmall thumbnails | Use large thumbnails | View as slideshow |
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