Cave-endemic
Guides
Batrisodes venyivi
Helotes Mold Beetle
Batrisodes venyivi, commonly known as the Helotes Mold Beetle, is a small, eyeless troglobitic beetle in the family Staphylinidae. It is endemic to eight caves in Bexar County, Texas, and was listed as endangered under the U.S. Endangered Species Act in 2000. The species exhibits classic cave-adapted traits including elongated antennae, legs, and sensory setae. Very little is known about its behavior, population trends, or life history due to the logistical challenges of accessing its subterranean habitat.
Hadenoecus jonesi
Limrock Blowing Cave Cricket, Jone's cave cricket
Hadenoecus jonesi is a cave-dwelling camel cricket endemic to the Limrock Blowing Cave system in northern Alabama. This flightless, eyeless insect belongs to the family Rhaphidophoridae, a group specialized for subterranean life. The species was described in 1978 by Thomas Hubbell and represents one of several cave-adapted orthopterans in the genus Hadenoecus.
Pseudanophthalmus pusio
Ellett Valley Cave Beetle
Pseudanophthalmus pusio is a troglobitic ground beetle endemic to cave systems in the eastern United States. First described by George Henry Horn in 1869, it belongs to a genus of eyeless, pigmentless beetles specialized for subterranean life. The species is known from limited localities in Virginia and represents one of many narrow-range endemics within this genus. Its common name references Ellett Valley in Montgomery County, Virginia, where the type locality is situated.
Trogloraptor
Cave robber
Trogloraptor is a genus of large cave-dwelling spiders endemic to southwestern Oregon, representing the sole genus in the family Trogloraptoridae. The genus contains one described species, Trogloraptor marchingtoni, distinguished by unique hook-like claws on the tarsi of its legs. Discovered in 2010 and described in 2012, this represents one of only three new spider families described since 1990. The genus name combines Greek and Latin roots meaning "cave robber," referencing both its habitat and predatory appendages.