Cave-obligate
Guides
Ceuthophilus chiricahuae
Chiricahua cave cricket
Ceuthophilus chiricahuae is a species of camel cricket (family Rhaphidophoridae) endemic to North America. The species was described by Hubbell in 1936 and is named for the Chiricahua Mountains region. Like other members of the genus Ceuthophilus, it is wingless and adapted to cool, dark, moist habitats. Very few observations of this species have been recorded, with only six documented occurrences in biodiversity databases.
Hadenoecus
Eastern Cave Crickets, cave crickets
Hadenoecus is a genus of cave crickets endemic to the southeastern United States, comprising five recognized species. These crickets are obligate cave-dwelling insects characterized by elongated antennae and enlarged hind legs adapted for movement in darkness. The genus is ecologically significant as a key component of cave ecosystems, serving as both detritivores and prey for other cave fauna. Hadenoecus subterraneus, the common cave cricket, is particularly well-studied due to its abundance in the Mammoth Cave system of Kentucky.
Tolus appalachius
Appalachian Cave Harvestman
Tolus appalachius is a small, eyeless cave-dwelling harvestman endemic to Tennessee. It is the sole described species in the genus Tolus. First described in 1942, this troglobitic arachnid is known from only a handful of cave systems in the Appalachian region. Its highly restricted distribution and specialized subterranean habitat make it vulnerable to environmental disturbances.