|
House Spiders
The name house spider is a generic term for 11 different spiders commonly found around human dwellings, and may refer to their common name: * Yellow sac spider, ''Chiracanthium inclusum'', a common house spider worldwide. * Black house spider, ''Badumna Insignis'', an Australian spider also found in New Zealand; * Brown house spider, ''Steatoda grossa'', a spider with cosmopolitan distribution; * American house spider, ''Parasteatoda tepidariorum'', a cobweb spider; * Cellar spider, of the family Pholcidae, also known as daddy long-legs in North America; * Domestic house spider, ''Tegenaria domestica'', also known as barn weaver in North America; * Giant house spider, ''Eratigena atrica'' (formerly ''Tegenaria gigantea''); * Hobo spider, ''Eratigena agrestis'' (sometimes called aggressive house spider); * Geometric House Spider or House button spider, ''Latrodectus Geometricus'' (more commonly known as the brown widow); * Southern house spider, ''Kukulcania hibernalis'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yellow Sac Spider
''Cheiracanthium'', commonly called ''yellow sac spiders'', is a genus of araneomorph spiders in the family Cheiracanthiidae, and was first described by Carl Ludwig Koch in 1839. They are usually pale in colour, and have an abdomen that can range from yellow to beige. Both sexes range in size from . They are unique among common house spiders because their tarsi do not point either outward, like members of ''Tegenaria'', or inward, like members of ''Araneus''), making them easier to identify. The name is a reference to the backwardly directed process on the cymbium of the male palp. The species epithet is derived from the Greek grc, χείρ, cheir, meaning "hand", and '' Acanthium'', a genus of thorny-stemmed plants. Venom Though they are beneficial predators in agricultural fields, they are also known to be mildly venomous to humans. Painful bites may be incurred from species such as '' C. punctorium'' in Europe, '' C. mildei'' in Europe and North America, '' C. inclusum'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black House Spider
The black house spider or common black spider (''Badumna insignis'') is a common species of cribellate Australian spider, introduced to New Zealand and Japan. A closely related species, ''Badumna longinqua'', the grey house spider, has a similar distribution, but has also been introduced to the Americas. Ludwig Carl Christian Koch described ''Badumna insignis'' in 1872. Description ''B. insignis'' is a dark, robust spider. The female grows up to 18 mm, with a 30 mm leg span. As with most spiders, the males are smaller (10 mm) and have longer legs in relation to their body size. In both sexes, the carapace and legs are dark brown to black, and the abdomen is charcoal grey with a dorsal pattern of light markings (sometimes indistinct) and a dense covering of fine, velvety hair. ''B. longinqua'' is slightly bigger (14 mm) with a greyish carapace and black-brown legs. Habits, mating, and reproduction The web of ''B. insignis'' is a messy-looking construct of i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steatoda Grossa
''Steatoda grossa'', commonly known as the cupboard spider, the dark comb-footed spider, the brown house spider (in Australia), or the false widow or false black widow (though several other species are known by these names), is a common species of spider in the genus '' Steatoda''. It is a cosmopolitan species found in many parts of the world, including North America, Australasia, and Europe. As two of this spider's common names indicate, the spider superficially resembles, and is frequently confused for, the black widow and other venomous spiders in the genus ''Latrodectus''. Description Like black widows, the female ''S. grossa'' is 6-10.5 mm in length and dark colored with a round, bulbous abdomen. Typical coloration ranges from purplish brown to black, with light-colored markings. Unlike black widows, redbacks, and other ''Latrodectus'' species, ''S. grossa'' does not have a bright red hourglass pattern or any other bright, distinctive markings. Like many spiders, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American House Spider
''Parasteatoda tepidariorum'', the common house spider or American house spider, is a spider species of the genus '' Parasteatoda'' with a cosmopolitan distribution. Common house spiders are synanthropic and live in and near human dwellings. Their prey mechanism is similar to that of the other cobweb spiders: the spider follows disturbances transmitted along the web to entangle and then paralyze its prey, which usually consists of household insects and other invertebrates (often considered as pests). Description Appearance Common house spiders are variable in color from tan to nearly black, frequently with patterns of differing shades on their body. Females are generally between long, and males are generally between long. They can be an inch (2.5 cm) or more across with legs outspread. ''P. tepidariorum'' is similar in body shape to widow spiders. Males have a less bulbous abdomen than females. Common house spiders' size and coloration allow the spiders to blend into the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cobweb Spider
Theridiidae, also known as the tangle-web spiders, cobweb spiders and comb-footed spiders, is a large family of araneomorph spiders first described by Carl Jakob Sundevall in 1833. This diverse, globally distributed family includes over 3,000 species in 124 genera, and is the most common arthropod found in human dwellings throughout the world. Theridiid spiders are both entelegyne, meaning that the females have a genital plate, and ecribellate, meaning that they spin sticky capture silk instead of woolly silk. They have a comb of serrated bristles (setae) on the tarsus of the fourth leg. The family includes some model organisms for research, including the medically important widow spiders. They are important to studies characterizing their venom and its clinical manifestation, but widow spiders are also used in research on spider silk and sexual biology, including sexual cannibalism. ''Anelosimus'' are also model organisms, used for the study of sociality, because it has evolv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pholcus Phalangioides
''Pholcus phalangioides'', commonly known as daddy long-legs spider or long-bodied cellar spider, is a spider of the family Pholcidae. It is also known as the skull spider, since its cephalothorax resembles a human skull. This is the only spider species described by the Swiss entomologist Johann Kaspar Füssli, who first recorded it in 1775. Its common name of "daddy long-legs" should not be confused with a different arachnid group with the same common name, the harvestman (Opiliones). Females have a body length of about 8 mm while males tend to be slightly smaller. The length of the spider's legs are on average 5 or 6 times the length of its body. ''Pholcus phalangioides'' has a habit of living on the ceilings of rooms, caves, garages or cellars. This spider species is considered beneficial in parts of the world because it preys on other spiders, including species considered dangerous such as redback spiders. ''Pholcus phalangioides'' is known to be harmless to humans a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Domestic House Spider
The spider species ''Tegenaria domestica'', commonly known as the barn funnel weaver in North America and the domestic house spider in Europe, is a member of the funnel-web family Agelenidae. Distribution and habitat Domestic house spiders range nearly worldwide. Their global distribution encompasses Europe, North Africa, parts of the Middle East and Central Asia. They have been introduced to the Americas, Australia, and New Zealand. In Europe, they are found as far north as Scandinavia to as far south as Greece and the Mediterranean sea. It is recorded in the checklist of Danish spider species. In North America, the species is found from as far north as maritime Canada down to the Southern United States. Appearance Domestic house spiders possess elongated bodies with a somewhat flattened cephalothorax and straight abdomen. Their body/legs ratio is typically 50–60%. ''T. domestica'' is one of the smaller species in the genus ''Tegenaria''. Female body length averages bet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giant House Spider
The giant house spider has been treated as either one species, under the name ''Eratigena atrica'', or as three species, ''E. atrica'', '' E. duellica'' and '' E. saeva''. , the three species view was accepted by the World Spider Catalog. They are among the largest spiders of Central and Northern Europe. They were previously placed in the genus ''Tegenaria''. In 2013, they were moved to the new genus ''Eratigena'' as the single species ''Eratigena atrica''. In 2018, the three separate species were restored. The bite of these species does not pose a threat to humans or pets, and they are generally reluctant to bite, preferring instead to hide or escape. Description The two sexes do not differ in coloration or markings. Its coloration is mainly dark brown. On its sternum is a lighter marking, with three light spots on each side that form an arrow-like shape pointing toward the head of the spider. The opisthosoma features a lighter middle line with six "spots" on each side. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hobo Spider
The hobo spider (''Eratigena agrestis'', formerly ''Tegenaria agrestis'') is a member of the family of spiders known colloquially as funnel web spiders, but not to be confused with the Australian funnel-web spider. Individuals construct a funnel-shaped structure of silk sheeting and lie in wait at the small end of the funnel for prey insects to blunder onto their webs. Hobo spiders sometimes build their webs in or around human habitations. The hobo spider lays its eggs in September and they hatch during late spring. After the male hobo spider mates it dies. Taxonomy The species was first described in 1802 by naturalist Charles Athanase Walckenaer as ''Aranea agrestis'', in reference to its western European habitat in fields, woods, and under rocks. In 1841, Walckenaer transferred the species to the genus ''Tegenaria''. In 2013, ''Tegenaria'' was split up, and the hobo spider was transferred to a new genus ''Eratigena'', an anagram of ''Tegenaria''. Identification Spiders, inc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latrodectus Geometricus
''Latrodectus geometricus'', commonly known as the brown widow, brown button spider, grey widow, brown black widow, house button spider or geometric button spider, is one of the widow spiders in the genus ''Latrodectus''. As such, it is a 'cousin' to the more infamous ''Latrodectus mactans'' (black widow). ''L. geometricus'' has black and white patterns on the sides of its abdomen as well as an orange-yellow colored hourglass shape. Their eggs are easily identified by points that project from all over the egg sacs. ''L. geometricus'' are found all over the world, but are believed to originate in South America. Their bites, though painful, are not considered to be dangerous. Taxonomy ''L. geometricus'' derives its name from the geometric patterning on its abdomen. However, the spider's coloring can and does darken over time and the pattern may become obscured. Similar widows include the ''L. rhodesiensis'', a brown-colored relative of ''L. geometricus'' which is native to Z ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern House Spider
The southern house spider is a species of large spider in the family Filistatidae. Currently given the scientific name ''Kukulcania hibernalis'', it was formerly known as ''Filistata hibernalis''. Found in the Americas, it exhibits strong sexual dimorphism. It is occurs in the southern states of the USA, throughout Central America and some of the Caribbean, to southern Brazil, Uruguay and Argentina. The males may be mistaken for Brown recluse spider, brown recluses because the two have similar coloration and body structure. However, compared to the brown recluse, male southern house spiders are typically larger in size, lack the distinctive violin shape on their cephalothorax, and have unusually long slender pedipalps. The females are dark brown or black and more compact. Both sexes may grow to be roughly across (legs extended), with the males typically having longer legs, and the females often having larger, bulbous bodies. The abdomen of the southern house spider is covered wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tiny House Spider
''Oonops domesticus'' is a tiny spider (males about 1.5 mm, females 2 mm) from Western Europe to Russia. It is a bleak light red, with a reddish to whitish abdomen. It is found only in buildings, where it builds a retreat in corners and between old paper. It hunts at night, probably with booklice as their common prey. Its translucent flat egg sacs contain only two eggs. It is very similar to the closely related '' O. pulcher'', but has five tibial spine pairs instead of four. ''O. pulcher'' is found outdoors. Name The species name ''domesticus'' is Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ... for "home". References Oonopidae Spiders of Europe Spiders of Russia Spiders described in 1916 {{oonopidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> American House Spider")
