Grand-canyon
Guides
Efferia albibarbis
Sand Hammertail
Efferia albibarbis is a species of robber fly in the family Asilidae, known as the Sand Hammertail. It belongs to the albibarbis-complex within the genus Efferia and is found in the Grand Canyon region of the southwestern United States. The species has been documented as a predator of tiger beetles, specifically Cicindela hirticollis and Habroscelimorpha dorsalis dorsalis.
Entomobrya zona
Rocky Mountain Springtail
Entomobrya zona, commonly known as the Rocky Mountain springtail, is a small springtail species endemic to the Rocky Mountains and known from three caves in the Grand Canyon. Adults reach approximately 2 mm in length and are characterized by tan coloration with black markings, including a distinctive wide dark band running down the center of the abdomen. The species occurs at elevations from 1,700 to over 3,000 meters in arid environments and coniferous forests. It is frequently found in subterranean habitats, where it is considered a troglophile.
Schinia immaculata
Schinia immaculata is a small noctuid moth endemic to riparian habitats along the Colorado River in the Grand Canyon, Arizona. First described in 2004, it is one of the more recently recognized species in the diverse genus Schinia. Adults fly in spring with a wingspan of approximately 20 mm. The larval host plant remains unknown, though the species occurs in vegetation dominated by tamarisk, mesquite, acacia, and desert shrubs.