|
Psechridae
Psechridae is a family (biology), family of Araneomorphae, araneomorph spiders with about 70 species in two genera. These are among the biggest cribellate spiders with body lengths up to and funnel webs more than in diameter. The family belongs to the RTA clade of spiders because they all have a Retrolateral Tibial Apophysis on the male pedipalp. A recent phylogenetic analysis places Psechridae as close relatives of the lynx spiders, wolf spiders, and nursery web spiders. They feature several characteristics normally found in ecribellate spiders, for example brood care behavior, and a colulus with no apparent function. They have greatly elongated legs, with the last element being very flexible. Female ''Psechrus'' carry their egg-sac in the chelicerae, similar to their relatives, the ecribellate Pisauridae. Members of ''Psechrus'' construct horizontal webs lace webs, while ''Fecenia'' construct pseudo-orbs, similar to orb webs of Orbiculariae spiders in an example of Convergen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psechridae
Psechridae is a family (biology), family of Araneomorphae, araneomorph spiders with about 70 species in two genera. These are among the biggest cribellate spiders with body lengths up to and funnel webs more than in diameter. The family belongs to the RTA clade of spiders because they all have a Retrolateral Tibial Apophysis on the male pedipalp. A recent phylogenetic analysis places Psechridae as close relatives of the lynx spiders, wolf spiders, and nursery web spiders. They feature several characteristics normally found in ecribellate spiders, for example brood care behavior, and a colulus with no apparent function. They have greatly elongated legs, with the last element being very flexible. Female ''Psechrus'' carry their egg-sac in the chelicerae, similar to their relatives, the ecribellate Pisauridae. Members of ''Psechrus'' construct horizontal webs lace webs, while ''Fecenia'' construct pseudo-orbs, similar to orb webs of Orbiculariae spiders in an example of Convergen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Psechridae Species
This page lists all described species of the spider family Psechridae accepted by the World Spider Catalog : ''Fecenia'' '' Fecenia'' Simon, 1887 * '' F. cylindrata'' Thorell, 1895 — China, Myanmar, Thailand, Laos * '' F. macilenta'' (Simon, 1885) — Malaysia, Indonesia (Sumatra) * '' F. ochracea'' (Doleschall, 1859) ( type) — Philippines to Australia (Queensland) * '' F. protensa'' Thorell, 1891 — India (mainland, Nicobar Is.), Sri Lanka, Thailand, Vietnam, Malaysia, Singapore, Brunei, Indonesia (Sumatra, Borneo, Bali) ''Psechrus'' '' Psechrus'' Thorell, 1878 * '' P. aluco'' Bayer, 2012 — Indonesia (Java) * '' P. ampullaceus'' Bayer, 2014 — Vietnam * '' P. ancoralis'' Bayer & Jäger, 2010 — Laos, Thailand * '' P. annulatus'' Kulczyński, 1908 — Indonesia (Java) * '' P. antraeus'' Bayer & Jäger, 2010 — Laos * '' P. arcuatus'' Bayer, 2012 — Indonesia (Sumatra) * '' P. argentatus'' (Doleschall, 1857) ( type) — Indonesia (Sulawesi) to Australia (Queensland) * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fecenia Cylindrata
''Fecenia'' is a genus of cribellate araneomorph spiders in the family Psechridae, and was first described by Eugène Louis Simon in 1887. Species it contains four species, found only in Asia and Queensland: *'' Fecenia cylindrata'' Thorell, 1895 – China, Myanmar, Thailand, Laos *'' Fecenia macilenta'' (Simon, 1885) – Malaysia, Indonesia (Sumatra) *'' Fecenia ochracea'' (Doleschall, 1859) ( type) – Philippines to Australia (Queensland) *'' Fecenia protensa'' Thorell, 1891 – India (mainland, Nicobar Is.), Sri Lanka, Thailand, Vietnam, Malaysia, Singapore, Brunei, Indonesia (Sumatra, Borneo, Bali) See also * List of Psechridae species This page lists all described species of the spider family Psechridae accepted by the World Spider Catalog : ''Fecenia'' '' Fecenia'' Simon, 1887 * '' F. cylindrata'' Thorell, 1895 — China, Myanmar, Thailand, Laos * '' F. macilenta'' (Simon, ... References Araneomorphae genera Psechridae Spiders of Asia Spiders of Australia< ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fecenia
''Fecenia'' is a genus of cribellate araneomorph spiders in the family Psechridae, and was first described by Eugène Louis Simon in 1887. Species it contains four species, found only in Asia and Queensland: *''Fecenia cylindrata'' Thorell, 1895 – China, Myanmar, Thailand, Laos *'' Fecenia macilenta'' (Simon, 1885) – Malaysia, Indonesia (Sumatra) *'' Fecenia ochracea'' (Doleschall, 1859) ( type) – Philippines to Australia (Queensland) *'' Fecenia protensa'' Thorell, 1891 – India (mainland, Nicobar Is.), Sri Lanka, Thailand, Vietnam, Malaysia, Singapore, Brunei, Indonesia (Sumatra, Borneo, Bali) See also * List of Psechridae species This page lists all described species of the spider family Psechridae accepted by the World Spider Catalog : ''Fecenia'' '' Fecenia'' Simon, 1887 * '' F. cylindrata'' Thorell, 1895 — China, Myanmar, Thailand, Laos * '' F. macilenta'' (Simon, ... References Araneomorphae genera Psechridae Spiders of Asia Spiders of Australia [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psechrus
''Psechrus'' is a genus of cribellate araneomorph spiders in the family Psechridae, and was first described by Tamerlan Thorell in 1878. Species it contains fifty-seven species, found only in Asia and Queensland: *'' P. aluco'' Bayer, 2012 – Indonesia (Java) *'' P. ampullaceus'' Bayer, 2014 – Vietnam *'' P. ancoralis'' Bayer & Jäger, 2010 – Laos, Thailand *'' P. annulatus'' Kulczyński, 1908 – Indonesia (Java) *'' P. antraeus'' Bayer & Jäger, 2010 – Laos *'' P. arcuatus'' Bayer, 2012 – Indonesia (Sumatra) *'' P. argentatus'' (Doleschall, 1857) ( type) – Indonesia (Sulawesi) to Australia (Queensland) *'' P. arietinus'' Bayer, 2014 – Vietnam *'' P. borneo'' Levi, 1982 – Borneo *'' P. cebu'' Murphy, 1986 – Philippines *'' P. changminae'' Feng, Zhang, Wu, Ma, T. B. Yang, Li & Z. Z. Yang, 2016 – China *'' P. clavis'' Bayer, 2012 – Taiwan *'' P. conicus'' Feng, Zhang, Wu, Ma, T. B. Yang, Li & Z. Z. Yang, 2016 – China *'' P. crepido'' Bayer, 2012 – India * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colulus
Cribellum literally means "little sieve", and in biology the term generally applies to anatomical structures in the form of tiny perforated plates. In certain groups of diatoms it refers to microscopically punctured regions of the frustule, or outer layer. In certain groups of spider species, so-called cribellate spiders, the cribellum is a silk spinning organ. Unlike the usual spinnerets of spiders, the cribellum consists of one or more plates covered in thousands of tiny spigots, tiny holes that hardly project from the surface, in contrast to the elongated spigots that project from spinnerets. These minute spigots produce extremely fine fibers, merely tens of nanometres thick, which are combed out by the spider's calamistrum, producing silk with a woolly texture. The fibers are so small in diameter that they are strongly subject to Van der Waals forces. In addition, the fibres have a surface that absorbs waxes from the epicuticle of insect prey on contact. This creates a pow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araneomorphae
The Araneomorphae (also called the Labidognatha) are an infraorder of spiders. They are distinguishable by chelicerae (fangs) that point diagonally forward and cross in a pinching action, in contrast to the Mygalomorphae (tarantulas and their close kin), where they point straight down. Araneomorphs comprise the vast majority of living spiders. Distinguishing characteristics Most spider species are Araneomorphae, which have fangs that face towards each other, increasing the orientations they can employ during prey capture. They have fewer book lungs (when present), and the females typically live one year. The Mygalomorphae have fangs that face towards the ground, and which are parallel to the long axis of the spider's body, thus they have only one orientation they can employ during prey capture. They have four pairs of book lungs, and the females often live many years. Image:Atrax robustus.jpg, This ''Atrax robustus'' shows the orientation of Myglamorphae fangs. Image:Che ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cribellate
Cribellum literally means "little sieve", and in biology the term generally applies to anatomical structures in the form of tiny perforated plates. In certain groups of diatoms it refers to microscopically punctured regions of the frustule, or outer layer. In certain groups of spider species, so-called cribellate spiders, the cribellum is a silk spinning organ. Unlike the usual spinnerets of spiders, the cribellum consists of one or more plates covered in thousands of tiny spigots, tiny holes that hardly project from the surface, in contrast to the elongated spigots that project from spinnerets. These minute spigots produce extremely fine fibers, merely tens of nanometres thick, which are combed out by the spider's calamistrum, producing silk with a woolly texture. The fibers are so small in diameter that they are strongly subject to Van der Waals forces. In addition, the fibres have a surface that absorbs waxes from the epicuticle of insect prey on contact. This creates a pow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 *Philodromidae *Phyx ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Insects
''Pacific Insects'' was a quarterly peer-reviewed scientific journal published by the Entomology Department at the Bishop Museum from 1959 to 1982. It was renamed to ''International Journal of Entomology'' in 1983 and discontinued in 1985. It was the organ of the "Zoogeography and Evolution of Pacific Insects" program. It should not be confused with ''Pacific Insects Monograph ''Pacific Insects Monographs'' was a scientific journal published by the Entomology Department, Bishop Museum The Bernice Pauahi Bishop Museum, designated the Hawaii State Museum of Natural and Cultural History, is a museum of history and sci ...'', nor with the new ''International Journal of Entomology'', published since 2010 by the International Society of Zoological Research. References External links * Publications established in 1959 Publications disestablished in 1985 Entomology journals and magazines English-language journals Quarterly journals Academic journals published by museum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligocene
The Oligocene ( ) is a geologic epoch of the Paleogene Period and extends from about 33.9 million to 23 million years before the present ( to ). As with other older geologic periods, the rock beds that define the epoch are well identified but the exact dates of the start and end of the epoch are slightly uncertain. The name Oligocene was coined in 1854 by the German paleontologist Heinrich Ernst Beyrich from his studies of marine beds in Belgium and Germany. The name comes from the Ancient Greek (''olígos'', "few") and (''kainós'', "new"), and refers to the sparsity of extant forms of molluscs. The Oligocene is preceded by the Eocene Epoch and is followed by the Miocene Epoch. The Oligocene is the third and final epoch of the Paleogene Period. The Oligocene is often considered an important time of transition, a link between the archaic world of the tropical Eocene and the more modern ecosystems of the Miocene. Major changes during the Oligocene included a global expansion o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Spider Catalog
The World Spider Catalog (WSC) is an online searchable database concerned with spider taxonomy. It aims to list all accepted families, genera and species, as well as provide access to the related taxonomic literature. The WSC began as a series of individual web pages in 2000, created by Norman I. Platnick of the American Museum of Natural History. After Platnick's retirement in 2014, the Natural History Museum of Bern (Switzerland) took over the catalog, converting it to a relational database. , 50,151 accepted species were listed. The order Araneae Spiders (order Araneae) are air-breathing arthropods that have eight legs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude silk. They are the largest order of arachnids and rank seventh in total species dive ... (spiders) has the seventh-most species of all orders. The existence of the World Spider Catalog makes spiders the largest taxon with an online listing that is updated regularly. It ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
