| Tixcocoba | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Arachnida |
| Order: | Araneae |
| Infraorder: | Araneomorphae |
| Family: | Clubionidae |
| Genus: | Tixcocoba Gertsch, 1977 [1] |
| Species: | T. maya |
| Binomial name | |
| Tixcocoba maya Gertsch, 1977 | |
Tixcocoba is a monotypic genus of North American sac spiders containing the single species, Tixcocoba maya. It was first described by Willis J. Gertsch in 1977, [2] and has only been found in Mexico. [1]
The recluse spiders, also known as brown spiders, fiddle-backs, violin spiders, and reapers, is a genus of spiders that was first described by R. T. Lowe in 1832. They are venomous spiders known for their bite, which sometimes produces a characteristic set of symptoms known as loxoscelism.
The sac spiders of the family Clubionidae have a very confusing taxonomic history. Once, this family was a large catch-all taxon for a disparate collection of spiders, similar only in that they had eight eyes arranged in two rows and conical anterior spinnerets that touched, and were wandering predators that built silken retreats, or sacs, usually on plant terminals, between leaves, under bark, or under rocks. These are now recognized to include several families, some of which are more closely related to the three-clawed spiders, like lynx and wolf spiders, than to Clubionidae and related families.
Leptonetidae is a relatively primitive family of spiders first described by Eugène Simon in 1890. It is made up of tiny haplogyne spiders, meaning they lack the hardened external female genitalia. Their six eyes are arranged in a semicircle of four in front and two behind. Many live in caves or in leaf litter around the Mediterranean, and in Eurasia, Japan and southern North America.
Symphytognathidae is a family of spiders with 73 described species in eight genera. They occur in the tropics of Central and South America and the Australian region. Exceptions include Anapistula benoiti, Anapistula caecula, and Symphytognatha imbulunga, found in Africa, Anapistula ishikawai, found in Japan, and Anapistula jerai, found in Southeast Asia.
Theotima is a genus of small spiders in the family Ochyroceratidae.
Neoleptoneta is a genus of North American leptonetids that was first described by Paolo Marcello Brignoli in 1972.
Mallos is a genus of cribellate araneomorph spiders in the family Dictynidae, and was first described by O. Pickard-Cambridge in 1902. Among the genus, Mallos gregalis is known to be a social spider species, living in groups and signaling each other by vibrating their web.
Coneweb spiders (Diguetidae) are six-eyed haplogyne spiders that live in tangled space webs, fashioning a cone-like central retreat where they hide and lay eggs. It is a small family, containing only two genera with fifteen species and is confined to the New World, preferring deserts. Members of the genus Diguetia usually build their webs in shrubs or between cactus pads. They have the same eye arrangement as the venomous recluse spiders, but none are known to be harmful to humans.
Nesticus is a genus of American and Eurasian scaffold web spiders first described by Tamerlan Thorell in 1869.
Cicurina, also called the cave meshweaver, is a genus of dwarf sheet spiders that was first described by Anton Menge in 1871. Originally placed with the funnel weavers, it was moved to the Dictynidae in 1967, then to the Hahniidae in 2017. The name is from the Latin root "cucur-", meaning "to tame".
Phrurolithidae is a family of araneomorph spiders first described by N. Banks in 1982. First included in the Corinnidae as the subfamily Phrurolithinae, later phylogenetic studies justified a separate family.
Filistatinella is a genus of North American crevice weavers that was first described by Willis J. Gertsch & Wilton Ivie in 1936. They are 1.5 to 3.5 millimetres long, and have a dark brown abdomen, longer than wide, with a few gray scales.
Neoantistea is a genus of dwarf sheet spiders that was first described by Willis J. Gertsch in 1934.
Chisoneta is a genus of North American Leptonetids that was first described by J. Ledford in 2011.
Anopsicus is a genus of cellar spiders that was first described by Ralph Vary Chamberlin & Vaine Wilton Ivie in 1938.
Metagonia is a genus of cellar spiders that was first described by Eugène Louis Simon in 1893.
Modisimus is a genus of cellar spiders that was first described by Eugène Louis Simon in 1893.
Pholcophora is a genus of cellar spiders that was first described by Nathan Banks in 1896.
Jalapyphantes is a genus of dwarf spiders that was first described by Carl Eduard Adolph Gerstaecker & L. I. Davis in 1946.
Phonotimpus is a genus of North American araneomorph spiders in the family Phrurolithidae. It was first described by Willis J. Gertsch and Louie Irby Davis in 1940, and placed with the Liocranidae. It was transferred to Corinnidae in 2002, then to the Phrurolithidae in 2014.
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