Neoleptoneta microps is a rare species of spider

Spider

Spiders are air-breathing arthropods that have eight legs, and chelicerae with fangs that inject venom. They are the largest order of arachnids and rank seventh in total species diversity among all other groups of organisms...

 in the family Leptonetidae known by the common name Government Canyon bat cave spider. It is endemic to Texas

Texas

Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...

 in the United States, where it is known from two caves in Bexar County

Bexar County, Texas

As of the census of 2000, there were 1,392,931 people, 488,942 households, and 345,681 families residing in the county. The population density was 1,117 people per square mile . There were 521,359 housing units at an average density of 418 per square mile...

. It is a troglobite

Troglobite

Troglobites are small cave-dwelling animals that have adapted to their dark surroundings. Troglobite species include spiders, insects, fish and others. They live permanently underground and cannot survive outside the cave environment. Troglobite adaptations and characteristics include a heightened...

, an animal which spends its entire life in caves. It is one of nine Bexar County troglobites which were listed as endangered species

Endangered species

An endangered species is a population of organisms which is at risk of becoming extinct because it is either few in numbers, or threatened by changing environmental or predation parameters...

 in 2000.

The main threat to this and other local troglobites is the loss of their karst

KARST

Kilometer-square Area Radio Synthesis Telescope is a Chinese telescope project to which FAST is a forerunner. KARST is a set of large spherical reflectors on karst landforms, which are bowlshaped limestone sinkholes named after the Kras region in Slovenia and Northern Italy. It will consist of...

 cave habitat. The nine other listed Bexar County invertebrates include the Robber Baron cave meshweaver

Cicurina baronia

Cicurina baronia is a rare species of spider in the family Dictynidae known by the common name Robber Baron cave meshweaver. It is endemic to Texas in the United States, where it is known from only one cave in Bexar County...

 (Cicurina baronia), the Cokendolpher cave harvestman

Texella cokendolpheri

Texella cokendolpheri is a rare species of arachnid known by the common name Cokendolpher Cave harvestman. It may also be called the Robber Baron cave harvestman. It is endemic to Texas in the United States, where it is only known from a single cave in Bexar County...

 (Texella cokendolpheri), and the Madla cave meshweaver

Cicurina madla

Cicurina madla is a rare species of spider in the family Dictynidae known by the common name Madla Cave meshweaver. It is endemic to Texas in the United States, where it is known from only eight caves in Bexar County...

(Cicurina madla).