Featured in this video are a bunch of caterpillars. More specifically, during the last half of March of 2015 Searles Valley was hit by a White Lined Sphinx Caterpillar Invasion. Some people reported seeing columns of these little critters marching through the desert and into town and, as luck would have it, several hundred wound up in my backyard. Obviously, an army must be fed, but these little soldiers were pretty picky about what they ate. Although they crawled on several different plants, it seemed that they only actually ate two plants: Brown-Eyed Evening Primrose and Mexican Evening Primrose, one a wildflower or weed, depending on one's perspective, and the other a commonly cultivated plant. Trona had experienced a particularly intense Brown-Eyed Evening Primrose bloom during the Spring of 2015 and so there was plenty of this plant to satisfy the caterpillars' appetites. Reportedly, White Lined Sphinx Caterpillars will eat a variety of plants including Purslane, but although there was plenty of Purslane in my backyard and a few caterpillars crawled over the plant, I didn't see them eating any Purslane. Other than the Evening Primrose the only other thing I saw the caterpillars actually eat were Willow Tree leaves.