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Menemerus Bifurcus
''Menemerus bifurcus'' is a species of jumping spider in the genus ''Menemerus'' that lives in South Africa, Zambia and Zimbabwe. The species was first described in 1999 by Wanda Wesołowska, one of over 500 descriptions she has written during her lifetime. The spider lives in groups in ''Acacia'', '' Combretum'', '' Jacaranda'', '' Spathodea'' and '' Trichilia'' trees as well as in houses and other areas of human habitation. It descends to attack prey on long threads of silk. It is a small spider, with a carapace that is between long and an abdomen between long. The female is larger than the male and generally lighter, ranging generally from fawnish-brown to dark brown. The species is similar to '' Menemerus formosus'' and '' Menemerus transvaalicus'' but differs in the design of its copulatory organs. The male has a short embolus with a longer lamella, which is recalled in the species name, and two distinctive tibial appendages, or apophyses, one with a characteristic tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Menemerus Semilimbatus
''Menemerus semilimbatus'' is a spider in the family Salticidae. Description ''Menemerus semilimbatus'' are about long, the male being slightly smaller than the female. These fairly big jumping spiders are dorso-ventrally flattened and are covered with short dense, grayish-white hairs, with hairy whitish palps and a white band on the side margins of the carapace A carapace is a Dorsum (biology), dorsal (upper) section of the exoskeleton or shell in a number of animal groups, including arthropods, such as crustaceans and arachnids, as well as vertebrates, such as turtles and tortoises. In turtles and tor ..., showing also a small white, triangular marking in the middle. The eyes are large and forward-facing. The legs are light brown with darker rings and patches, while the abdomen is dorsally yellowish or grayish, with a characteristic pattern of several bright V-shaped markings. The females show a notch at the posterior edge of the epigyne and two oval depressions in the an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epigyne
The epigyne or epigynum is the external genital structure of female spiders. As the epigyne varies greatly in form in different species, even in closely related ones, it often provides the most distinctive characteristic for recognizing species. It consists of a small, hardened portion of the exoskeleton located on the underside of the abdomen, in front of the epigastric furrow and between the epigastric plates. Functions The primary function of the epigyne is to receive and direct the palpal organ of the male during copulation. The various specific forms of epigynes are correlated, in each case, with corresponding specific differences in the palpus of the male. This specialization prevents individuals of different species from mating. The epigyne covers or accompanies the openings of the spermathecae, which are pouches for receiving and retaining sperm. Frequently, the openings of the spermathecae are on the outer face of the epigyne and can be easily seen. A secondary funct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salticoida
Salticoida is an unranked clade of the jumping spider family Salticidae. It is the larger and more widespread of the two subdivisions of the "typical" jumping spiders (subfamily Salticinae), occurring effectively world-wide. Its sister clade is Amycoida, which is also very diverse ecologically but has a mostly South American distribution. Systematics and evolution Salticoida includes the bulk of extant jumping spider diversity, with over 400 genera organized phylogenetically into 18 tribes according to Wayne Maddison's 2015 proposal. The age and origin of the Salticoida are not well determined. Certainly, by the late Paleogene the major lineages were recognizably distinct as indicated by the fossil evidence and molecular phylogeny. Thus, the salticoids presumably originated during or around the PETM or a bit earlier, but no corresponding fossils have been found yet. Their sister lineage, the Amycoida, probably originated by dispersal across the ocean to South America, which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clade (biology)
A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, the equivalent Latin term ''cladus'' (plural ''cladi'') is often used in taxonomical literature. The common ancestor may be an individual, a population, or a species (extinct or extant). Clades are nested, one in another, as each branch in turn splits into smaller branches. These splits reflect evolutionary history as populations diverged and evolved independently. Clades are termed monophyletic (Greek: "one clan") groups. Over the last few decades, the cladistic approach has revolutionized biological classification and revealed surprising evolutionary relationships among organisms. Increasingly, taxonomists try to avoid naming taxa that are not clades; that is, taxa that are not monophyletic. Some of the relationships between organis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wayne Maddison
Wayne Paul Maddison , is a professor and Canada Research Chair at the departments of zoology and botany at the University of British Columbia, and the Director of the Spencer Entomological Collection at the Beaty Biodiversity Museum. His research concerns the phylogeny, biodiversity, and evolution of jumping spiders (Salticidae), of which he has discovered new species and genera. He has also done research in phylogenetic theory, developing and perfecting various methods used in comparative biology, such as character state inference in internal nodes through maximum parsimony, squared-change parsimony, or character correlation through the concentrated changes test or pairwise comparisons. In collaboration with David R. Maddison, he worked on thMesquiteopen-source Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use the source code, design documents, or content of the product. The open-sourc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chrysillini
Chrysillini is a tribe of jumping spider in the family Salticidae. In Maddison's 2015 revision of the family, the subfamily Heliophaninae was reclassified as a junior synonym of Chrysillini. Genera * '' Afraflacilla'' * '' Augustaea'' * '' Chrysilla'' * '' Cosmophasis'' * '' Echinussa'' * '' Epocilla'' * ''Festucula'' * ''Hakka'' * ''Helicius'' * '' Heliophanillus'' * ''Heliophanus'' * '' Helvetia'' * '' Icius'' * '' Kupiuka'' * ''Marchena'' * '' Matagaia'' * ''Menemerus'' * ''Mexcala'' * ''Natta'' * '' Ogdenia'' * '' Orsima'' * '' Paraheliophanus'' * '' Phintella'' * '' Plesiopiuka'' * '' Siler'' * '' Tasa'' * '' Theriella'' * ''Wesolowskana'' * ''Yepoella ''Yepoella'' is a monotypic taxon, monotypic genus of Argentinian Salticidae, jumping spiders containing the single species, ''Yepoella crassistyli''. It was first described by María Elena Galiano in 1970, and is found in Argentina. A second spec ...'' References Salticidae Spider tribes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tribe (biology)
In biology, a tribe is a taxonomic rank above genus, but below family (biology), family and subfamily. It is sometimes subdivided into subtribes. By convention, all taxonomic ranks from genus upwards are capitalized, including both tribe and subtribe. In zoology, the standard ending for the name of a zoological tribe is "-ini". Examples include the tribes Goat-antelope#Tribe Caprini, Caprini (goat-antelopes), Hominini (hominins), Bombini (bumblebees), and Thunnini (tunas). The tribe Hominini is divided into subtribes by some scientists; subtribe Hominina then comprises "humans". The standard ending for the name of a zoological subtribe is "-ina". In botany, the standard ending for the name of a botanical tribe is "-eae". Examples include the tribes Acalypheae and Scilloideae#Hyacintheae, Hyacintheae. The tribe Hyacintheae is divided into subtribes, including the subtribe Massoniinae. The standard ending for the name of a botanical subtribe is "-inae". In bacteriology, the form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phintella
''Phintella'' is a genus of jumping spiders that was first described by W. Bösenberg & Embrik Strand in 1906. Species it contains fifty-nine species and one subspecies, found in Oceania, Asia, Europe, and Africa: *'' P. abnormis'' (Bösenberg & Strand, 1906) – Russia (Far East), China, Korea, Japan *'' P. accentifera'' ( Simon, 1901) – India, China, Vietnam *'' P. aequipeiformis'' Zabka, 1985 – China, Vietnam *'' P. aequipes'' (Peckham & Peckham, 1903) – Africa **'' Phintella a. minor'' (Lessert, 1925) – East Africa *'' P. africana'' Wesolowska & Tomasiewicz, 2008 – Ethiopia *'' P. albopatella (Petrunkevitch, 1914) – Myanmar *'' P. arcuata'' Huang, Wang & Peng, 2015 – China *'' P. arenicolor'' (Grube, 1861) – Russia (Far East), China, Korea, Japan *'' P. argentea'' Kanesharatnam & Benjamin, 2019 – Sri Lanka *'' P. argenteola'' (Simon, 1903) – Vietnam *'' P. assamica'' Prószyński, 1992 – India, Laos *'' P. australis'' (Simon, 1902) – South Africa *' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helvetia
Helvetia () is the female national personification of Switzerland, officially ''Confoederatio Helvetica,'' the Swiss Confederation. The allegory is typically pictured in a flowing gown, with a spear and a shield emblazoned with the Swiss flag, and commonly with braided hair, commonly with a wreath as a symbol of confederation. The name is a derivation of the ethnonym '' Helvetii'', the name of the Gaulish tribe inhabiting the Swiss Plateau before the Roman conquest. History The fashion of depicting the Swiss Confederacy in terms of female allegories arises in the 17th century. This replaces an earlier convention, popular in the 1580s, of representing Switzerland as a bull (''Schweizer Stier''). In the first half of the 17th century, there was not a single allegory identified as ''Helvetia''. Rather, a number of allegories were shown, representing both virtues and vices of the confederacy. On the title page of his 1642 ''Topographia'', Matthäus Merian shows two allego ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pellenes
''Pellenes'' is a genus of jumping spiders that was first described by Eugène Louis Simon in 1876. It is considered a senior synonym of ''Hyllothyene''. They are dark to black with white stripes on the back, and often have bright red markings. Most species have a special propensity for snail shells. ''Pellenes seriatus'' and ''P. lapponicus'' males look very similar to ''Hasarius adansoni'' when viewed from the front. Species it contains eighty-three species and one subspecies, found in North America, Africa, Europe, Asia, Australia, and on Saint Helena: *'' P. aethiopicus'' Strand, 1906 – Ethiopia *'' P. albopilosus'' (Tyschchenko, 1965) – Russia, Kazakhstan *'' P. allegrii'' Caporiacco, 1935 – Ukraine, Russia (Europe) to Central Asia *'' P. amazonka'' Logunov, Marusik & Rakov, 1999 – Central Asia *'' P. apacheus'' Lowrie & Gertsch, 1955 – USA *'' P. arciger'' (Walckenaer, 1837) – Southern Europe, Armenia *'' P. badkhyzicus'' Logunov, Marusik & Rakov, 1999 – Tur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypaeus
''Hypaeus'' is a genus of the spider family Salticidae ( jumping spiders). Species , the World Spider Catalog accepted the following species: *'' Hypaeus annulifer'' Simon, 1900 – Brazil *'' Hypaeus barromachadoi'' Caporiacco, 1947 – Guyana *'' Hypaeus benignus'' (Peckham & Peckham, 1885) – Mexico to Panama *'' Hypaeus concinnus'' Simon, 1900 – Brazil *'' Hypaeus cucullatus'' Simon, 1900 – Ecuador *'' Hypaeus duodentatus'' Crane, 1943 – Guyana *'' Hypaeus estebanensis'' Simon, 1900 – Venezuela *'' Hypaeus femoratus'' Araújo & Ruiz, 2015 – Brazil *'' Hypaeus flavipes'' Simon, 1900 – Brazil *'' Hypaeus flemingi'' Crane, 1943 – Venezuela, Brazil *'' Hypaeus frontosus'' Simon, 1900 – Brazil *'' Hypaeus ignicomus'' Simon, 1900 – Brazil *'' Hypaeus luridomaculatus'' Simon, 1900 – Brazil *'' Hypaeus miles'' Simon, 1900 – Brazil, Guyana, French Guiana *'' Hypaeus mystacalis'' (Taczanowski, 1878) – Ecuador, Peru *'' Hypaeus nigrocomosus'' Simon, 1900 � ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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