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Plexippus Baro
''Plexippus baro'' is a species of jumping spider in the genus ''Plexippus'' that lives in the Ethiopia. The male was first described by Wanda Wesołowska and Beata Tomasiewicz in 2008. The female has not been identified. The spider is medium-sized with a cephalothorax that is typically long and an abdomen long. The carapace is brown with three white stripes and the abdomen is russet-brown with a single white stripe. The spider has a pattern of two narrow white stripes on its clypeus which give it a distinctive face. The copulatory organs distinguish it from related species, particularly the male's longer embolus. Taxonomy ''Plexippus baro'' is a jumping spider that was first described in 2010 by Wanda Wesołowska and Beata Tomasiewicz. It is one of over 500 species identified by the Polish arachnologist Wesołowska. It was placed in the genus ''Plexippus'', first raised by Carl Ludwig Koch in 1846. The word plexippus is Greek and can be translated striking or drivi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. '' Panthera leo'' (lion) and '' Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. phylogenetic analysis should c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plexippini
The Plexippini are a tribe of jumping spiders (Salticidae). They have also been treated as the subfamily Plexippinae. Genera Wayne Maddison in 2015 placed the following genera in the tribe: *'' Afrobeata'' Caporiacco, 1941 *'' Anarrhotus'' Simon, 1902 *'' Artabrus'' Simon, 1902 *'' Baryphas'' Simon, 1902 *''Bianor'' Peckham & Peckham, 1886 *'' Brancus'' Simon, 1902 *'' Burmattus'' Prószyński, 1992 *'' Dasycyptus'' Simon, 1902 *''Dexippus'' Thorell, 1891 *'' Eburneana'' Wesołowska & Szűts, 2001 *''Encymachus'' Simon, 1902 *''Epeus'' Peckham & Peckham, 1886 *''Evarcha'' Simon, 1902 *'' Habronattus'' F.O. P.-Cambridge, 1901 *'' Harmochirus'' Simon, 1885 *'' Hermotimus'' Simon, 1903 *'' Hyllus'' C.L. Koch, 1846 *'' Iranattus'' Prószyński, 1992 *'' Microbianor'' Logunov, 2000 *'' Modunda'' Simon, 1901 *''Monomotapa'' Wesołowska, 2000 – now included in '' Iranattus'' *'' Napoca'' Simon, 1901 *''Neaetha'' Simon, 1884 *'' Nigorella'' Wesołowska & Tomasiewicz, 2008 *'' Pachyonom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plexippus Auberti
In Greek mythology, Plexippus or Plexippos (Ancient Greek: Πλήξιππος means "striking") is a name that refers to: * Plexippus, a Pleuronian prince as the son of King Thestius of Pleuron and Eurythemis, daughter of Cleoboea. He was the brother of Althaea, Leda, Hypermnestra, Evippus, Eurypylus and Iphiclus. Together with his other brother Toxeus, Plexippus participated in the hunt for the Calydonian Boar. He was angry that the prize of the boar's hide had been given to a woman (Atalanta) by his nephew Meleager, who then killed him in the ensuing argument. *Plexippus, a Thracian prince as son of Phineus and Cleopatra, brother of Pandion. He and his brother were blinded by Phineus at the instigation of their stepmother Idaea. *Plexippus, an Egyptian prince as one of the sons of Aegyptus. He married (and was killed by) Amphicomone, daughter of Danaus. *Plexippus, an Arcadian prince as the son of the King Choricus, brother of Enetus and Palaestra.Servius ad Virgil, ''A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plexippus Paykulli
''Plexippus paykulli'' is a species of jumping spider. It is native to south east Asia but has spread to other parts of the world and globe. In the United States it is called the pantropical jumping spider. It is usually associated with buildings and may be found near light sources catching insects attracted by the light. It is named in honor of Gustaf von Paykull. Distribution ''Plexippus paykulli'' is cosmopolitan in distribution. It is native to tropical regions of Africa and Asia. The species has been introduced to the Americas, where it can be found from the southern United States to Paraguay. It is also present in Australia. They are also found in the islands of Maldives. Description ''Plexippus paykulli'' is robust, with a high carapace. It is covered with short greyish hairs with sometimes dramatic accents of red in the male. Females are in body length, while males are . The sexes are easy to tell apart as the males have a black carapace and abdomen with a broad white c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pedipalp
Pedipalps (commonly shortened to palps or palpi) are the second pair of appendages of chelicerates – a group of arthropods including spiders, scorpions, horseshoe crabs, and sea spiders. The pedipalps are lateral to the chelicerae ("jaws") and anterior to the first pair of walking legs. Overview Pedipalps are composed of six segments or articles: the coxa, the trochanter, the femur, the short patella, the tibia, and the tarsus. In spiders, the coxae frequently have extensions called maxillae or gnathobases, which function as mouth parts with or without some contribution from the coxae of the anterior legs. The limbs themselves may be simple tactile organs outwardly resembling the legs, as in spiders, or chelate weapons ( pincers) of great size, as in scorpions. The pedipalps of Solifugae are covered in setae, but have not been studied in detail. Comparative studies of pedipalpal morphology may suggest that leg-like pedipalps are primitive in arachnids. At present, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthropod Leg
The arthropod leg is a form of jointed appendage of arthropods, usually used for walking. Many of the terms used for arthropod leg segments (called podomeres) are of Latin origin, and may be confused with terms for bones: ''coxa'' (meaning hip, plural ''coxae''), ''trochanter'', ''femur'' (plural ''femora''), ''tibia'' (plural ''tibiae''), ''tarsus'' (plural ''tarsi''), ''ischium'' (plural ''ischia''), ''metatarsus'', ''carpus'', ''dactylus'' (meaning finger), ''patella'' (plural ''patellae''). Homologies of leg segments between groups are difficult to prove and are the source of much argument. Some authors posit up to eleven segments per leg for the most recent common ancestor of extant arthropods but modern arthropods have eight or fewer. It has been argued that the ancestral leg need not have been so complex, and that other events, such as successive loss of function of a ''Hox''-gene, could result in parallel gains of leg segments. In arthropods, each of the leg segments ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spinneret
A spinneret is a silk-spinning organ of a spider or the larva of an insect. Some adult insects also have spinnerets, such as those borne on the forelegs of Embioptera. Spinnerets are usually on the underside of a spider's opisthosoma, and are typically segmented. While most spiders have six spinnerets, some have two, four, or eight. They can move both independently and in concert. Most spinnerets are not simple structures with a single orifice producing a single thread, but complex structures of many microscopic spigots, each producing one filament. This produces the necessary orientation of the protein molecules, without which the silk would be weak and useless. Spigots can be singular or found in groups, which also permits spiders to combine multiple filaments in different ways to produce many kinds of silk for various purposes. Spinneret morphology can help arachnologists identify the taxon of a specimen and the specific morphology of a spigot can determine its use as well ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Labium (arthropod Mouthpart)
The mouthparts of arthropods have evolved into a number of forms, each adapted to a different style or mode of feeding. Most mouthparts represent modified, paired appendages, which in ancestral forms would have appeared more like legs than mouthparts. In general, arthropods have mouthparts for cutting, chewing, piercing, sucking, shredding, siphoning, and filtering. This article outlines the basic elements of four arthropod groups: insects, myriapods, crustaceans and chelicerates. Insects are used as the model, with the novel mouthparts of the other groups introduced in turn. Insects are not, however, the ancestral form of the other arthropods discussed here. Insects Insect mouthparts exhibit a range of forms. The earliest insects had chewing mouthparts. Specialisation includes mouthparts modified for siphoning, piercing, sucking and sponging. These modifications have evolved a number of times. For example, mosquitoes (which are flies) and aphids (which are bugs) both ... [...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 ... [...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] |
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 Scie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chrysilla
''Chrysilla'' is a genus of jumping spiders that was first described by Tamerlan Thorell in 1887. Several species formerly placed here were transferred to ''Phintella'', and vice versa. Females are long, and males are long. The genus is Persian, derived from the Greek . Species it contains ten species, found only in Africa, Asia, and New South Wales: *'' Chrysilla acerosa'' Wang & Zhang, 2012 – China *'' Chrysilla albens'' Dyal, 1935 – Pakistan *'' Chrysilla deelemani'' Prószyński & Deeleman-Reinhold, 2010 – Indonesia ( Lombok) *'' Chrysilla delicata'' Thorell, 1892 – Myanmar *'' Chrysilla doriae'' Thorell, 1890 – Indonesia (Sumatra) *'' Chrysilla guineensis'' ( Wesolowska & Wiśniewski, 2013) – Guinea *'' Chrysilla kolosvaryi'' Caporiacco, 1947 – East Africa *'' Chrysilla lauta'' Thorell, 1887 (type) – Sri Lanka, Myanmar, Thailand, Vietnam, China, Taiwan *'' Chrysilla pilosa'' ( Karsch, 1878) – Australia (New South Wales) *'' Chrysilla volupe'' (Karsch, 18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
