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Microbianor Globosus
''Microbianor globosus'' is a species of jumping spider in the genus ''Microbianor'' that lives in South Africa. It lives on the banks of the Orange River in Northern Cape. The species was first described in 2011 by Charles Haddad and Wanda Wesołowska. It is a very small spider, with a carapace typically long and an abdomen typically long. The carapace is high, broad, short and almost completely dark brown. The abdomen is oval with a white pattern of patches around a central line. The front pair of legs are longer and brown, the remainder being yellow. The male has a characteristic long embolus that curves around the palpal bulb. There is an unusually large spike or apophysis on the pedipalp tibia. This helps identify the species. The female has not been described. Taxonomy ''Microbianor globosus'' is a species of jumping spider that was first described by Charles Haddad and Wanda Wesołowska in 2011. It was one of over 500 species identified by the Polish arachn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wanda Wesołowska
Wanda Wesołowska (born 11 August 1950) is a Polish zoologist known for her work with jumping spiders. She has described more species of jumping spider than any contemporary writer, and is second only to Eugène Simon in the history of arachnology. Originally a student of ornithology, she developed an interest in jumping spiders while still a student at the Siedlce University of Natural Sciences and Humanities in the 1970s. She subsequently undertook study into the genus ''Heliophanus'' at the University of Wroclaw. Her subsequent doctoral thesis described 44 new species, and joined the staff at the university. She stayed until retiring in 2020. Her research included the taxonomy and zoogeography of jumping spiders, and has included extensive work on African genera like ''Menemerus'' and ''Pachyballus''. She has identified over 500 species, including half of all those from South Africa, as well as having more than 20 named after her. Early life Wanda Wesołowska (née Nowysz) was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bianor
''Bianor'' is a genus of boreal jumping spiders that can grow to . The robust shiny body and northerly distribution are distinctive. Males can be easily recognized by his swollen forelegs and females have orange legs. It was first described by George and Elizabeth Peckham in 1886, who names it after the mythical son of Hercules. Species it contains twenty-eight species: *'' Bianor albobimaculatus'' (Lucas, 1846) — Africa, Mediterranean to Russia (Europe), Azerbaijan, Kazakhstan, Central Asia, Pakistan, India *'' Bianor angulosus'' (Karsch, 1879) — India, Sri Lanka, Bhutan, Bangladesh, China, Myanmar, Vietnam, Thailand, Malaysia, Indonesia *'' Bianor balius'' Thorell, 1890 — India, Sri Lanka, Bhutan, China, Japan (Ryukyu Is.), Thailand, Cambodia, Malaysia, Indonesia, Kiribati (Caroline Is.) *'' Bianor biguttatus'' Wesolowska & van Harten, 2002 — Yemen (Socotra) *''Bianor biocellosus'' Simon, 1902 — Brazil *'' Bianor compactus'' (Urquhart, 1885) — New Zealand *'' Bia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maxilla (arthropod Mouthpart)
In arthropods, the maxillae (singular maxilla) are paired structures present on the head as mouthparts in members of the clade Mandibulata, used for tasting and manipulating food. Embryologically, the maxillae are derived from the 4th and 5th segment of the head and the maxillary palps; segmented appendages extending from the base of the maxilla represent the former leg of those respective segments. In most cases, two pairs of maxillae are present and in different arthropod groups the two pairs of maxillae have been variously modified. In crustaceans, the first pair are called maxillulae (singular maxillula). Modified coxae at the base of the pedipalps in spiders are also called "maxillae", although they are not homologous with mandibulate maxillae. Myriapoda Millipedes In millipedes, the second maxillae have been lost, reducing the mouthparts to only the first maxillae which have fused together to form a gnathochilarium, acting as a lower lip to the buccal cavity and the man ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unidentate
In coordination chemistry, denticity () refers to the number of donor groups in a given ligand that bind to the central metal atom in a coordination complex. In many cases, only one atom in the ligand binds to the metal, so the denticity equals one, and the ligand is said to be monodentate (sometimes called unidentate). Ligands with more than one bonded atom are called polydentate or multidentate. The denticity of a ligand is described with the Greek letter κ ('kappa'). For example, κ6- EDTA describes an EDTA ligand that coordinates through 6 non-contiguous atoms. Denticity is different from hapticity because hapticity refers exclusively to ligands where the coordinating atoms are contiguous. In these cases the η ('eta') notation is used. Bridging ligands use the μ ('mu') notation. Classes Polydentate ligands are chelating agents and classified by their denticity. Some atoms cannot form the maximum possible number of bonds a ligand could make. In that case one or m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chelicerae
The chelicerae () are the mouthparts of the subphylum Chelicerata, an arthropod group that includes arachnids, horseshoe crabs, and sea spiders. Commonly referred to as "jaws", chelicerae may be shaped as either articulated fangs, or similarly to pincers. Some chelicerae, such as those found on nearly all spiders, are hollow and contain (or are connected to) venom glands, and are used to inject venom into prey or a perceived threat. In ''Pisaurina mira'', also known as the nursery web spider, the chelicerae are utilized to snatch the prey once it becomes within reach, facilitating the "sit-and-wait ambush predator" behavior. Both pseudoscorpions and harvestmen have structures on their chelicerae that are used for grooming (papillae in pseudoscorpions, cheliceral teeth in Opiliones). Types Chelicerae can be divided into three kinds: jackknife chelicerae, scissor chelicerae, and 3-segmented chelate chelicerae. Jackknife chelicerae The jackknife chelicera is subchelate (with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spider Vision
The eyes of spiders vary significantly in their structure, arrangement, and function. They usually have eight, each being a simple eye with a single lens (optics), lens rather than multiple units as in the compound eyes of insects. The specific arrangement and structure of the eyes is one of the features used in the identification and classification of different species, genera, and families. Most Haplogynae, haplogynes have six eyes, although some have eight (Plectreuridae), four (e.g., ''Tetrablemma'') or even two (most Caponiidae). In some cave species, there are no eyes at all (e.g. Stalita taenaria). Sometimes one pair of eyes is better developed than the rest. Several families of hunting spiders, such as jumping spiders and wolf spiders, have fair to excellent vision. The main pair of eyes in jumping spiders even sees in colour. Structure and anatomy Spiders' eyes are Simple eye in invertebrates, simple eyes, or ''ocelli'' (singular ''ocellus''), meaning their eyes have a si ... [...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, wh ... [...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] |
Tribe (biology)
In biology, a tribe is a taxonomic rank above genus, but below 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 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 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 of tribe names is as in botany, e.g., Pseudomonadeae, based on the ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sibianor
''Sibianor'' is a genus of Salticidae, jumping spiders that was first described by D. V. Logunov in 2001. They are closely related to ''Bianor''. Species it contains fifteen species, found in Europe, Asia, Africa, Canada, and the United States: *''Sibianor aemulus'' (Willis J. Gertsch, Gertsch, 1934) – USA, Canada *''Sibianor anansii'' Logunov, 2009 – Botswana *''Sibianor annae'' Logunov, 2001 – China *''Sibianor aurocinctus'' (Ohlert, 1865) (Type_species, type) – Europe, Turkey, Caucasus, Russia (Europe to southern Siberia), Kazakhstan, China, Korea, Japan *''Sibianor japonicus'' (Logunov, Ikeda & Ono, 1997) – Russia (Far East), Japan *''Sibianor kenyaensis'' Logunov, 2001 – Botswana, Kenya *''Sibianor kochiensis'' (Bohdanowicz & Jerzy Prószyński, Prószyński, 1987) – Japan *''Sibianor larae'' Logunov, 2001 – Europe, Russia (Europe to Far East) *''Sibianor latens'' (Logunov, 1991) – Russia (South Siberia to Far East), China *''Sibianor nigriculus'' (Logunov & ... [...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 (phylogenetics), 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 phylogeny software, thMacCladeprogram, and the Tree of Life Web Project. His research has led him to discover new species of jumping spiders in Sarawak and Papua New Guinea. Selected pu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jerzy Prószyński
Jerzy Prószyński (born 1935 in Warsaw) is a Polish arachnologist specializing in systematics of jumping spiders (family Salticidae). He is a graduate of the University of Warsaw, a long-term employee of the Siedlce University of Natural Sciences and Humanities and the Institute of Zoology of the Polish Academy of Sciences in Warsaw. Biography In 1957 he completed his biological studies at the University of Warsaw. During his studies he was employed at the Institute of Zoology of the Polish Academy of Sciences in Warsaw, where he conducted research on spiders in the Kampinos Forest. Between 1963 and 1967 he lectured on zoology at the University of Ghana. In 1966 he obtained his Ph.D. at the Adam Mickiewicz University in Poznań. A year later he was given the opportunity to pursue a postdoctoral fellowship at Harvard University, but he was refused a passport. In 1972 he was employed at the Higher School of Education in Siedlce (later the Siedlce University of Natural Scien ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
