Tigrosa
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Tigrosa
''Tigrosa'' is a genus of spiders in the family Lycosidae, found in North America. Taxonomy The genus ''Tigrosa'' was erected by Allen R. Brady in 2012. Prior to 1990, many medium to large wolf spiders (family Lycosidae) from North America were placed in the genus ''Lycosa''. In 1990 it was accepted that ''Lycosa'' was a Mediterranean genus and did not occur in North America; seven species were transferred to ''Hogna''. A more detailed examination of the type species of ''Hogna'', ''Hogna radiata'', convinced Brady that a new genus was needed for some of the North American species that had been moved to ''Hogna''. Characters that distinguish ''Tigrosa'' from ''Hogna'' include the pattern on the upper (dorsal) surface of the cephalothorax, the arrangement of the eyes, and the shape of the female epigyne. The generic name ''Tigrosa'' is intended to mean "fierce like a tiger", referring to the patterning and behaviour of ''Tigrosa'' species. Species , the World Spider Catalog acc ...
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Tigrosa Helluo
''Tigrosa helluo'' is a species of spider belonging to the family Lycosidae, also known as wolf spiders. ''T. helluo'' was formerly known as ''Hogna helluo'' before differences between dorsal color patterns, habitat preferences, body structures, etc. were discovered. The species is native to the United States, Canada, and Mexico. It can be found across the eastern half of the United States, primarily in the Northeast and New England, and as far west as Nebraska and Kansas. ''T. helluo'' can be found in diverse habitats including woods, marshes, fields, and riparian areas. Typically, members of this species prefer to live in wetter areas as opposed to dry environments. Males tend to live for around a year and females will live for close to two years. The defining characteristic of ''T. helluo'' is its brown carapace and distinct yellow stripe starting from its anterior eyes extending down the cephalothorax. The underside of the abdomen has distinct black spots that d ...
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Tigrosa Aspersa
''Tigrosa aspersa'' is a large (up to one-inch (25 mm) body length) wolf spider that inhabits the eastern United States. Compared to its close relative ''Tigrosa helluo'', ''T. aspersa'' is much larger. This species was known as ''Hogna aspersa'' prior to 2012, when it was moved to ''Tigrosa''. A different species (''Lycosa implacida ''Lycosa'' is a genus of wolf spiders distributed throughout most of the world. Sometimes called the "true tarantula", though not closely related to the spiders most commonly called tarantulas today, ''Lycosa'' spp. can be distinguished from comm ...'') was named ''Lycosa aspersa'' in 1849 by Nicolet by accident. References External linksPhoto Lycosidae Spiders of the United States Spiders described in 1844 Taxa named by Nicholas Marcellus Hentz {{Lycosidae-stub ...
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Tigrosa Annexa
''Tigrosa annexa'' is a species of wolf spider (Lycosidae) native to eastern North America from Texas, east to Florida, and north to Ohio Ohio () is a state in the Midwestern region of the United States. Of the fifty U.S. states, it is the 34th-largest by area, and with a population of nearly 11.8 million, is the seventh-most populous and tenth-most densely populated. The sta .... References Lycosidae Spiders of the United States Spiders described in 1944 {{lycosidae-stub ...
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Tigrosa Georgicola
''Tigrosa georgicola'' is a species of wolf spider in the family Lycosidae. It is endemic to the Southeastern United States. The type specimen was collected in Burke County, Georgia Burke County is a county located along the eastern border of the U.S. state of Georgia in the Piedmont. As of the 2020 census, the population was 24,596. The county seat is Waynesboro. Burke County is part of the Augusta-Richmond County, GA- .... Its habitat includes the forest floor of deciduous woodlands. References Lycosidae Spiders of the United States Spiders described in 1837 {{lycosidae-stub ...
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Tigrosa Grandis
''Tigrosa grandis'' is a species of wolf spider (Lycosidae) endemic to the United States, where it occurs from Montana, east to Missouri, and south to Texas Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 .... References Lycosidae Spiders of the United States Spiders described in 1894 {{lycosidae-stub ...
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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 ...
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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 functi ...
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Type Species
In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen(s). Article 67.1 A similar concept is used for suprageneric groups and called a type genus. In botanical nomenclature, these terms have no formal standing under the code of nomenclature, but are sometimes borrowed from zoological nomenclature. In botany, the type of a genus name is a specimen (or, rarely, an illustration) which is also the type of a species name. The species name that has that type can also be referred to as the type of the genus name. Names of genus and family ranks, the various subdivisions of those ranks, and some higher-rank names based on genus names, have such types.
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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 ...
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Cephalothorax
The cephalothorax, also called prosoma in some groups, is a tagma of various arthropods, comprising the head and the thorax fused together, as distinct from the abdomen behind. (The terms ''prosoma'' and ''opisthosoma'' are equivalent to ''cephalothorax'' and ''abdomen'' in some groups.) The word ''cephalothorax'' is derived from the Greek words for head (, ') and thorax (, '). This fusion of the head and thorax is seen in chelicerates and crustaceans; in other groups, such as the Hexapoda (including insects), the head remains free of the thorax. In horseshoe crabs and many crustaceans, a hard shell called the carapace covers the cephalothorax. Arachnid anatomy Fovea The fovea is the centre of the cephalothorax and is located behind the head (only in spiders).Dalton, Steve (2008). ''Spiders; The Ultimate Predators''. A & C Black, London. P.p. 19. . It is often important in identification. It can be transverse or procurved Smith, A. M. (1990c). Baboon spiders: Tarantulas of Afri ...
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Lake Placid, Florida
Lake Placid is a town in Highlands County, Florida, United States. As of the 2010 census the population was 2,223 and in 2018 the estimated population was 2,439. It is part of the Sebring Metropolitan Statistical Area. The town has two nicknames: "Town of Murals" and "The Caladium Capital of the World". Lake Placid has 47 murals painted on buildings throughout the town, and 98 percent of the world's caladium bulbs come from Lake Placid. There are 14 caladium farms, spanning 1,200 acres, and these plants have been grown in the area since the 1940s. In 2013, ''Reader's Digest'' named Lake Placid America's Most Interesting Town. The town is home to the Lake Placid Tower, a closed concrete block observation tower that is tall according to early sources or tall according to late sources. However, government sources exclude a 270-foot height, allowing only a 240-foot height. __TOC__ History Lake Placid, which was formerly called "Lake Stearns", was chartered on December 1, 1925. ...
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Hogna Radiata
''Hogna radiata'' is a species of wolf spider 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 ... present in South Europe (from the middle of France), north Africa and Central Asia (N. I. Platnick). This species is wandering, hunting smaller insects less than 20% of its own size. Found on grass, parks, and forests. References Sources * (frnĀ°1* (fr* (pt Spiders of Europe Spiders described in 1817 Spiders of Africa Spiders of Asia Lycosidae {{Lycosidae-stub ...
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