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RTA Clade
The RTA clade is a clade of araneomorph spiders, united by the possession of a retrolateral tibial apophysis – a backward-facing projection on the tibia of the male pedipalp. The clade contains over 21,000 species, almost half the current total of about 46,000 known species of spider. Most of the members of the clade are wanderers and do not build webs. Despite making up approximately half of all modern spider diversity, there are no unambiguous records of the group from the Mesozoic and molecular clock evidence suggests that the group began to diversify during the Late Cretaceous. Families In 2005, Coddington included 39 families in a cladogram showing the RTA clade: * Agelenidae *Amaurobiidae *Ammoxenidae *Amphinectidae ( paraphyletic; merged into Desidae) *Anyphaenidae * Cithaeronidae *Clubionidae *Corinnidae *Cryptothelidae *Ctenidae * Desidae *Dictynidae *Gallieniellidae *Gnaphosidae * Lamponidae * Liocranidae *Lycosidae * Miturgidae (paraphyletic) * Oxyopidae *Philodromi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alopecosa Albofasciata
''Alopecosa'' is a spider genus in the family Lycosidae (wolf spiders), with about 160 species. They have a largely Eurasian distribution, although some species are found in North Africa and North America. Life cycle Most species grow up to 2 cm. ''Alopecosa'' females make a burrow in which they deposit their egg sac. The female then stays in the burrow guarding the sac until the eggs hatch. Taxonomy The species in this genus have been traditionally grouped into sibling species complexes (groups) based on morphological characters, but, as morphology-based taxonomy can be unreliable, alternative methods have also been employed to identify species correctly. For example, differences in observed courtship and copulation behaviour have proved to be a useful tool for species identification and delimitation, particularly in cryptic species. Molecular techniques have also been applied to reconstruct phylogenetic relationships between some species. Species , the World Spider Cata ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cithaeronidae
Cithaeronidae is a small family of araneomorph spiders first described by Simon in 1893 Female ''Cithaeron'' are about long, males about . They are pale yellowish, fast-moving spiders that actively hunt at night and rest during the day, building silken retreats below rocks. They prefer very hot, dry stony places. Distribution While ''Inthaeron'' occurs only in India, members of the genus ''Cithaeron'' are found in Africa, India and parts of Eurasia. Three adult females of ''C. praedonius'' were found in Teresina, Piauí, Brazil. As they were found in and near human housings, they presumably were accidentally introduced. This is probably also the case for finds in the Northern Territory of Australia. Another population of ''C. praedonius'' has been discovered in Florida U.S.A., with reports of a stable breeding population.(Pers. comm. Joseph Stiles) Genera and Species This section lists all described species accepted by the World Spider Catalog : ''Cithaeron Cithaeron or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxyopidae
Lynx spider (Oxyopidae) is a family of araneomorph spiders first described by Tamerlan Thorell in 1870. Most species make little use of webs, instead spending their lives as hunting spiders on plants. Many species frequent flowers in particular, ambushing pollinators, much as crab spiders do. They tend to tolerate members of their own species more than most spiders do, and at least one species has been identified as exhibiting social behaviour. Description There are several genera of Oxyopidae and they differ in their habits and adaptations. Most of them have large spiny bristles on their legs and in many species the bristles form almost a basket-like structure that may assist in confining the prey that they grasp, and protect the spider from its struggles. Most ''Oxyopes'' and ''Hamataliwa'' species are small to medium in size. Lynx spiders, in spite of being largely ambush hunters, are very speedy runners and leapers, alert and with good vision. Oxyopidae in general rely on kee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miturgidae
Miturgidae is a family of araneomorph spiders that includes nearly 170 species in 29 genera worldwide. First described by Eugène Simon in 1886, it has been substantially revised, and includes the previous family Zoridae as a synonym, and excludes the family Xenoctenidae. Several genera have also been removed, such as the large genus '' Cheiracanthium'', which was transferred to the Cheiracanthiidae. Genera , the World Spider Catalog accepts the following genera: *'' Argoctenus'' L. Koch, 1878 — New Zealand, Australia, Papua New Guinea *'' Diaprograpta'' Simon, 1909 — Australia *''Elassoctenus'' Simon, 1909 — Australia *''Eupograpta'' Raven, 2009 — Australia *''Hestimodema'' Simon, 1909 — Australia *''Israzorides'' Levy, 2003 — Israel *''Mituliodon'' Raven & Stumkat, 2003 — Timor-Leste, Australia *''Miturga'' Thorell, 1870 — Australia *''Mitzoruga'' Raven, 2009 — Australia *'' Nuliodon'' Raven, 2009 — Australia *'' Odomasta'' Simon, 1909 — Australia *' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lycosidae
Wolf spiders are members of the family Lycosidae (). They are robust and agile hunters with excellent eyesight. They live mostly in solitude, hunt alone, and do not spin webs. Some are opportunistic hunters, pouncing upon prey as they find it or chasing it over short distances; others wait for passing prey in or near the mouth of a burrow. Wolf spiders resemble nursery web spiders (family Pisauridae), but wolf spiders carry their egg sacs by attaching them to their spinnerets, while the Pisauridae carry their egg sacs with their chelicerae and pedipalps. Two of the wolf spider's eight eyes are large and prominent; this distinguishes them from nursery web spiders, whose eyes are all of roughly equal size. This can also help distinguish them from the similar-looking grass spiders. Description The many genera of wolf spiders range in body size (legs not included) from less than . They have eight eyes arranged in three rows. The bottom row consists of four small eyes, the middle ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liocranidae
Liocranidae is a family of araneomorph spiders first described by Eugène Simon in 1897. They are one of several groups called "sac spiders". The holarctic genus '' Agroeca'' is the best-known, but it also includes various genera of more obscure spiders that still lack a diagnosis. Two species in the North American genus ''Neoanagraphis'' are found in the extremely dry conditions in the Mojave, Sonoran and Chihuahuan deserts. Females live in animal burrows while males wander and are the ones most often caught in pitfall traps. Genera , the World Spider Catalog accepts the following genera: *''Agraecina'' Simon, 1932 — Europe, Africa, Kazakhstan *'' Agroeca'' Westring, 1861 — Asia, Europe, Africa, South America, North America *''Andromma'' Simon, 1893 — Africa *''Apostenus'' Westring, 1851 — Africa, United States, Europe *''Arabelia'' Bosselaers, 2009 — Greece, Turkey *''Argistes'' Simon, 1897 — Sri Lanka *''Coryssiphus'' Simon, 1903 — South Africa *''Cteniogast ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamponidae
Lamponidae is a family of spiders first described by Eugène Simon in 1893. It contains about 200 described species in 23 genera, most of which are endemic to Australia, with the genus ''Centrocalia'' endemic to New Caledonia, and two ''Lampona'' species (''L. cylindrata'', ''L. murina'') also occurring in New Zealand where it is commonly known as the "White Tail" spider. ''Lampona papua'' is endemic to New Guinea, where two otherwise Australian species (''Centrothele mutica'', ''Lamponova wau'') also occur. Genera The categorization into subfamilies follows Joel Hallan'Biology Catalog * Centrothelinae Platnick, 2000 :* ''Asadipus'' Simon, 1897 (Australia) :* ''Bigenditia'' Platnick, 2000 (Australia) :* '' Centrocalia'' Platnick, 2000 (New Caledonia) :* '' Centroina'' Platnick, 2002 (Australia) :* ''Centrothele'' L. Koch, 1873 (Australia) :* '' Centsymplia'' Platnick, 2000 (Australia) :* '' Graycassis'' Platnick, 2000 (Australia) :* ''Longepi'' Platnick, 2000 (Australia) :* '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gnaphosidae
Ground spiders comprise Gnaphosidae, the seventh largest spider family with over 2,000 described species in over 100 genera distributed worldwide. There are 105 species known to central Europe, and common genera include ''Gnaphosa'', ''Drassodes'', ''Micaria'', ''Cesonia'', ''Zelotes'' and many others. They are closely related to Clubionidae. At present, no ground spiders are known to be seriously venomous to humans. Description Generally, ground spiders are characterized by having barrel-shaped anterior spinnerets that are one spinneret diameter apart. The main exception to this rule is found in the ant-mimicking genus ''Micaria''. Another characteristic is an indentation in the endites (paired mouthparts anterior and lateral to the labium, or lip). All ground spiders lack a prey-capture web and generally run prey down on the surface. They hunt at night and spend the day in a silken retreat. The genitalia are diverse and are a good model for studying the evolution of genitalia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gallieniellidae
Gallieniellidae is a family of spiders first described by J. Millot in 1947. It was originally thought to be endemic (ecology), endemic to Madagascar until species were also found in southern Kenya, northeastern Argentina, and Australia. ''Drassodella'' was transferred from the family Gnaphosidae in 1990. They are suspected to be specialized in ant-preying. Genera , the World Spider Catalog accepts the following genera: *''Austrachelas'' Lawrence, 1938 — South Africa *''Drassodella'' Hewitt, 1916 — South Africa *''Galianoella'' Goloboff, 2000 — Argentina *''Gallieniella'' Millot, 1947 — Madagascar, Comoros *''Legendrena'' Platnick, 1984 — Madagascar *''Meedo_(spider), Meedo'' Main, 1987 — Australia *''Neato_(spider), Neato'' Platnick, 2002 — Australia *''Oreo_(spider), Oreo'' Platnick, 2002 — Australia *''Peeto'' Platnick, 2002 — Australia *''Questo'' Platnick, 2002 — Australia See also * List of Gallieniellidae species References Gallieniellidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dictynidae
Dictynidae is a family of cribellate, hackled band-producing spiders first described by Octavius Pickard-Cambridge in 1871. Most build irregular webs on or near the ground, creating a tangle of silken fibers among several branches or stems of one plant. The genus '' Argyroneta'' has been placed in a separate family Argyronetidae, but the family is not accepted by the World Spider Catalog and the genus is included in the Dictynidae. Genera , the World Spider Catalog accepts the following genera: *'' Adenodictyna'' Ono, 2008 — Japan *'' Aebutina'' Simon, 1892 — Ecuador, Brazil *'' Ajmonia'' Caporiacco, 1934 — Asia, Algeria *'' Altella'' Simon, 1884 — Europe, Asia, Algeria *'' Anaxibia'' Thorell, 1898 — Asia, Africa *'' Arangina'' Lehtinen, 1967 — New Zealand *'' Archaeodictyna'' Caporiacco, 1928 — Asia, Europe, Africa *'' Arctella'' Holm, 1945 — Asia, North America *'' Argenna'' Thorell, 1870 — Asia, North America *'' Argennina'' Gertsch & Mulaik, 1936 — United ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Desidae
Desidae is a family of spiders, some of which are known as intertidal spiders. The family is named for the genus '' Desis'', members of which live in a very unusual location — between the tides. The family has been reevaluated in recent years and now includes inland genera and species as well, such as ''Badumna'' and ''Phryganoporus''. In 2017, the family Amphinectidae was merged into Desidae. The family Toxopidae has been separated off. Those intertidal spiders that are truly marine commonly live in barnacle shells, which they seal up with silk; this allows them to maintain an air bubble during high tide. They emerge at night to feed on various small arthropods that live in the intertidal zone. Distribution As now circumscribed, the family Desidae is mainly found in South America and Australasia, with some species reaching north to Malaysia. ''Metaltella simoni'' has been introduced in a large part of the Southern United States (records exist from California, Louisiana, Missis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ctenidae
Wandering spiders (''Ctenidae'') are a family of spiders that includes the Brazilian wandering spiders. These spiders have a distinctive longitudinal groove on the top-rear of their oval carapace similar to those of the Amaurobiidae. They are highly defensive and venomous nocturnal hunters. Wandering spiders are known to hunt large prey, for example hylid species '' Dendropsophus branneri.'' Despite their notoriety for being dangerous, only a few members of ''Phoneutria'' have venom known to be hazardous to humans, but the venoms of this family are poorly known, so all larger ctenids should be treated with caution. Genera , the World Spider Catalog accepts the following genera: *'' Acantheis'' Thorell, 1891 — Asia *'' Acanthoctenus'' Keyserling, 1877 — South America, Central America, Jamaica, Mexico *'' Africactenus'' Hyatt, 1954 — Africa, India *'' Afroneutria'' Polotow & Jocqué, 2015 — Africa *'' Amauropelma'' Raven, Stumkat & Gray, 2001 — Asia, Australia *'' Amicac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
