Huntsman spiders, members of the family Sparassidae, are known by this name because of their speed and mode of hunting. They are also called giant crab spiders because of their size and appearance. Larger species sometimes are referred to as wood spiders, because of their preference for woody places. In southern Africa the genus Palystes are known as rain spiders or lizard-eating spiders. Commonly they are confused with baboon spiders from the Mygalomorphae infraorder, which are not closely related.
Latrodectus is a broadly distributed genus of spiders with several species that, together, are referred to as true widows. This group is composed of those often loosely called black widow spiders, brown widow spiders, and similar spiders. However, such general "common names" are of limited use as the diversity of species is much greater. A member of the family Theridiidae, this genus contains 32 species, which include several North American "black widows". In addition to these in North America are also the red widow Latrodectus bishopi and the brown widow Latrodectus geometricus, which, in addition to North America, has a much wider geographic distribution. Elsewhere, others include the European black widow, the Australian redback black widow, several different species in Southern Africa that can be called Button spiders, and the South American black widow spiders. Species vary widely in size. In most cases, the females are dark-coloured, but some may have lighter bodies or even reddish. Many can have red, white or brown markings on the upper-side (dorsal) of the abdomen. Some can be readily identifiable by reddish markings on the central underside (ventral) abdomen, which are often hourglass-shaped.
The Pholcidae are a family of araneomorph spiders. The family contains over 1,800 pholcids, including those commonly known as the marbled cellar spider , daddy long-legs spider, granddaddy long-legs spider, carpenter spider, daddy long-legger, vibrating spider, gyrating spider, long daddy, and skull spider. The family, first described by Carl Ludwig Koch in 1850, is divided into 94 genera.
Schizopteridae is the largest family in the infraorder Dipsocoromorpha and comprises 56 genera and approximately 255 species. Schizopterids are some of the smallest (0.5–2.0 mm) true bugs. Members of this family can be distinguished by their small size, enlarged forecoxae and varying degree of abdominal and genitalic asymmetry in males. Schizopteridae exhibit a wide range of simple and complex wing venation patterns–some species even possess true elytra. The group is currently divided into three subfamilies: Schizopterinae, Ogeriinae and Hypselosomatinae.
Capsulia is a genus of East Asian dwarf spiders that was first described by Michael I. Saaristo, L. H. Tu & S. Q. Li in 2006. As of May 2019 it contains only two species, both found in China: C. laciniosa and C. tianmushana.
Centromerus is a genus of dwarf spiders that was first described by David B. Hirst in 1886.
Linyphantes is a genus of North American dwarf spiders that was first described by Ralph Vary Chamberlin & Vaine Wilton Ivie in 1942.
Zornella armata is a species of dwarf spider in the family Linyphiidae. It is found in the United States and Canada.
Wamba crispulus is a species of cobweb spider in the family Theridiidae. It is found in a range from Canada to Brazil and the Caribbean.
Bathyphantes weyeri is a species of sheetweb spider in the family Linyphiidae. It is found in the USA.
Philodromus spectabilis is a species of running crab spider in the family Philodromidae. It is found in the USA and Canada.
Singa eugeni is a species of orb weaver in the family of spiders known as Araneidae. It is found in the United States.
Erigone blaesa is a species of dwarf spider in the family Linyphiidae. It is found in the USA and Canada.
Microneta viaria is a species of sheetweb spider in the family Linyphiidae. It is found in North America, Europe, Turkey, North Africa, the Caucasus, a range within Russia, China, Mongolia, Korea, and Japan.
Tapinocyba simplex is a species of dwarf spider in the family Linyphiidae. It is found in the USA.
Centromerus persolutus is a species of sheetweb spider in the family Linyphiidae. It is found in the Northeast United States and Canada.
Cercidia prominens is a species of orb weaver in the family of spiders known as Araneidae. It is found in North America, Europe, the Caucasus, and a range from Russia to Kazakhstan.
Urozelotes rusticus is a species of ground spider found in both Americas, Africa, Europe, Asia, Australia. Its native area is unknown, but it is most likely Old World.
Aptostichus stanfordianus, the Stanford Hills trapdoor spider, is a species of wafer-lid trapdoor spider (Euctenizidae) endemic to California in the United States.
