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.
Dwarf sheet spiders (Hahniidae) is a family of araneomorph spiders, first described by Philipp Bertkau in 1878. Their bodies are about 2 millimetres (0.079 in) long, and they build extremely delicate webs in the form of a sheet. Unlike many spiders the web does not lead to a retreat. The silk used in these webs is so fine that they are difficult to spot unless they are coated with dew. They greatly favor locations near water or near moss, and are often found in leaf litter and detritus or on the leaves of shrubs and trees.
Barychelidae, also known as brushed trapdoor spiders, is a spider family with about 300 species in 42 genera. Most spiders in this family build trapdoor burrows. For example, the 20 millimetres (0.79 in) long Sipalolasma builds its burrow in rotted wood, with a hinged trapdoor at each end. The 10 millimetres (0.39 in) long Idioctis builds its burrow approximately 5 centimetres (2.0 in) deep, just below the high tide level, sealing the opening with a thin trapdoor.
Phryganoporus is a genus of Australian intertidal spiders that was first described by Eugène Simon in 1908. Its five species only occur in Australia and Tasmania, with one species also occurring on Norfolk Island, south of New Caledonia. The name is derived from Greek phryganon and poros ("hole"), referring to the web that is often built on dry shrubs or low vegetation with a hole as an entrance.
Lampona is a genus of South Pacific spiders in the Lamponidae family that was first described by Tamerlan Thorell in 1869. At least two species have a whitish tip to the abdomen and are known as "white-tailed spiders". Both hunt other spiders and have been introduced to New Zealand. The name is derived from the Middle English laumpe, meaning "light" or "fire".
Badumna is a genus of intertidal spiders that was first described by Tamerlan Thorell in 1890. They are harmless spiders that can be found around human structures and buildings. They are darkly colored, usually with a lighter colored pattern on the abdomen. The most well-known species is B. insignis, also known as the "black house spider" or "black window spider".
Arkys, also known as triangular spider or ambush spider, is a genus of Australian araneomorph spiders in the Arkyidae family, first described by Charles Athanase Walckenaer in 1837. They are often small, with a triangular shaped abdomen, and can be found in Australia and some of its surrounding islands. They don't build webs, but can often be found on leaves and tips of flower heads. Their egg sacs are pinkish-orange and spherical, and are made late in the summer.
Isopeda is a genus of huntsman spiders occurring in Australia, New Guinea, New Caledonia, and the Philippines. The genus was first described by Ludwig Carl Christian Koch in 1875.
Menneus is a genus of net-casting spiders that was first described by Eugène Simon in 1876. It includes the former genera Avella and Avellopsis. Species are found in Australia, New Caledonia, and eastern and southern Africa. Originally placed with the cribellate orb-weavers, it was moved to the Deinopidae in 1967.
Hemicloea is a genus of South Pacific flat spiders that was first described by Tamerlan Thorell in 1870. Originally placed with the ground spiders, it was moved to the Trochanteriidae in 2018.
Arkyidae is a family of araneomorph spiders first described by Ludwig Carl Christian Koch in 1872 as a subfamily of Araneidae, and later elevated to a full family in 2017.
Cicirra is a monotypic genus of Australian intertidal spiders containing the single species, Cicirra decemmaculata. It was first described by Eugène Simon in 1886, and has only been found in Australia. Originally placed with the funnel-weavers, it was moved to the Matachiinae in 1967. They are closely related to Forsterina.
Syrorisa is a monotypic genus of South Pacific intertidal spiders containing the single species, Syrorisa misella. It was first described by Eugène Simon in 1908, and has only been found on New Caledonia and Australia. Originally placed in the Amaurobiidae, it was moved to the Desidae in 1967.
Anzacia is a genus of South Pacific ground spiders that was first described by R. de Dalmas in 1919.
Storena is a genus of ant spiders first described by Charles Athanase Walckenaer in 1805.
