| Aysenia | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Arachnida |
| Order: | Araneae |
| Infraorder: | Araneomorphae |
| Family: | Anyphaenidae |
| Genus: | Aysenia Tullgren, 1902 [1] |
| Type species | |
| A. elongata Tullgren, 1902 | |
| Species | |
9, see text | |
Aysenia is a genus of South American anyphaenid sac spiders first described by Albert Tullgren in 1902. [2]
As of April 2019 [update] it contains nine species from Chile and Argentina: [1]
Anyphaenidae is a family of araneomorph spiders, sometimes called anyphaenid sac spiders. They are distinguished from the sac spiders of the family Clubionidae and other spiders by having the abdominal spiracle placed one third to one half of the way anterior to the spinnerets toward the epigastric furrow on the underside of the abdomen. In most spiders the spiracle is just anterior to the spinnerets. Like clubionids, anyphaenids have eight eyes arranged in two rows, conical anterior spinnerets and are wandering predators that build silken retreats, or sacs, usually on plant terminals, between leaves, under bark or under rocks. There are more than 500 species in over 50 genera worldwide.
Amaurobiidae is a family of three-clawed cribellate or ecribellate spiders found in crevices and hollows or under stones where they build retreats, and are often collected in pitfall traps. Unlidded burrows are sometimes quite obvious in crusty, loamy soil. They are difficult to distinguish from related spiders in other families, especially Agelenidae, Desidae and Amphinectidae. Their intra- and interfamilial relationships are contentious. According to the World Spider Catalog, 2019, the family Amaurobiidae includes about 275 species in 49 genera.
Nemesiidae, also known as funnel-web trapdoor spiders, is a family of mygalomorph spiders first described by Eugène Simon in 1889, and raised to family status in 1985. Before becoming its own family, it was considered part of "Dipluridae".
Sanogasta is a genus of South American anyphaenid sac spiders first described by Cândido Firmino de Mello-Leitão in 1941.
Callevopsis is a genus of South American tangled nest spiders containing the single species, Callevopsis striata. It was first described by Albert Tullgren in 1902, and has only been found in Chile and Argentina.
Macrobunus is a genus of tangled nest spiders first described by Albert Tullgren in 1901.
Acanthoceto is a genus of South American anyphaenid sac spiders first described by Cândido Firmino de Mello-Leitão in 1944.
Negayan is a genus of South American anyphaenid sac spiders first described by M. J. Ramírez in 2003.
Oxysoma is a genus of South American anyphaenid sac spiders first described by H. Nicolet in 1849.
Philisca is a genus of South American anyphaenid sac spiders first described by Eugène Simon in 1884.
Gnolus is a genus of South American orb-weaver spiders that was first described by Eugène Louis Simon in 1879. Originally placed with the orb-weaving spiders, it was transferred to the pirate spiders in 1993, but moved back to orb-weaver family in 2012.
Diphya is a genus of long-jawed orb-weavers that was first described by H. Nicolet in 1849. D. tanasevitchi and D. albulum were transferred from Lophomma in 2007.
Molinaranea is a genus of South American orb-weaver spiders first described by Cândido Firmino de Mello-Leitão in 1940.
Orsolobus is a genus of South American araneomorph spiders in the family Orsolobidae, and was first described by Eugène Louis Simon in 1893.
Anisaedus is a genus of palp-footed spiders that was first described by Eugène Louis Simon in 1893.
Neomaso is a genus of dwarf spiders that was first described by Raymond Robert Forster in 1970.
Allende is a genus of South American long-jawed orb-weavers that was first described by F. Álvarez-Padilla in 2007.