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Araneus
''Araneus'' is a genus of common orb-weaving spiders. It includes about 650 species, among which are the European garden spider and the barn spider. The genus was erected by Carl Alexander Clerck in 1757. Description Spiders of this genus present perhaps the most obvious case of sexual dimorphism among all of the orb-weaver family, with males being normally to the size of females. In ''A. diadematus'', for example, last-molt females can reach the body size up to 1 in (2.5 cm), while most males seldom grow over 0.3 in (1 cm), both excluding leg span. Males are differentiated from females by a much smaller and more elongated abdomen, longer legs, and the inability to catch or consume prey bigger than themselves. In females, the epigyne has a long scape (a tongue-like appendage). Male pedipalps have a hook-like terminal apophysis. Abdominal tubercles are present anterolaterally. Taxonomic history ''Araneus'' was, for much of its history, called ''Epeira'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araneus Mitificus
''Araneus mitificus'', commonly known as the kidney garden spider or pale orb weaver is a species of orb-weaver spider found in South, East, and Southeast Asia. Taxonomy ''Araneus mitificus'' belongs to the genus '' Araneus''. It is classified under the subfamily Araneinae of the orb-weaver spider family Araneidae. They are members of the superfamily of eight-eyed spiders Araneoidea of the suborder Araneomorphae. The species was originally described in 1886 as ''Epeira mitifica'' by the French arachnologist Eugène Simon. Description ''Araneus mitificus'' are small spiders and exhibit sexual dimorphism. The females grow up to . Males are smaller, reaching only , and are generally less colorful than the females. Their abdomens are globular and covered with fine hair. They slope abruptly from the mid-region to the posterior. Two small but distinct tubercles are present at the rear end. The dorsal surface is covered with white and black patterns that can vary considera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araneus Angulatus
''Araneus angulatus'' is a species of orb-weaving spiders found in the Palearctic realm. It resembles the European garden spider, ''Araneus diadematus'', but has distinctive tubercles on its abdomen. The species was first described in '' Aranei Svecici'' in 1757, where it was the first species described, making ''Araneus angulatus'' the first scientific name of an animal that is still in use. Description ''Araneus angulatus'' closely resembles the more frequently encountered European garden spider, ''Araneus diadematus'', but can be distinguished by the presence of angular tubercles on the abdomen. Distribution ''Araneus angulatus'' is found across a wide geographical range in the Palearctic realm. It is widespread in Europe, although rarer in Northern Europe. ''A. angulatus'' is rare in the United Kingdom, where it is restricted to areas near the South coast of England. Subspecies Six subspecies are currently recognized: * ''Araneus angulatus afolius'' (Franganillo, 1909) — ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araneus Marmoreus
''Araneus marmoreus'', commonly called the marbled orbweaver, is a species of spider belonging to the family Araneidae. It is sometimes also called the pumpkin spider from the resemblance of the female's inflated abdomen to an orange pumpkin. It has a Holarctic distribution. Taxonomy ''Araneus marmoreus'' was first described by Carl Alexander Clerck in 1757. In the same work, he also described ''Araneus pyramidatus'', now regarded as a synonym of ''A. marmoreus''. Description Two main forms of this species are known. The nominate variety has an orange abdomen with black or brown marbling while var. ''pyramidatus'' is much paler, sometimes almost white, with a single dark patch towards the rear of the abdomen. The nominate variety is found throughout the species' range while var. ''pyramidatus'' is more commonly found in Europe, where the two varieties are seldom found together. While the ''pyramidatus'' form is uncommon in North America, this pattern can be seen in the No ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araneus Diadematus
The spider species ''Araneus diadematus'' is commonly called the European garden spider, diadem spider, orangie, cross spider, and crowned orb weaver. It is sometimes called the pumpkin spider, although this name is also used for a different species, ''Araneus marmoreus''. It is an orb-weaver spider found in Europe, where it is native, and North America, where it is introduced. Range ''A. diadematus'' has a holarctic distribution throughout Europe and across North America, from southern Canada to Mexico, and from British Columbia to Newfoundland.Cross Spider Washington NatureMapping Project Size and markings [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
European Garden Spider
The spider species ''Araneus diadematus'' is commonly called the European garden spider, diadem spider, orangie, cross spider, and crowned orb weaver. It is sometimes called the pumpkin spider, although this name is also used for a different species, ''Araneus marmoreus''. It is an orb-weaver spider found in Europe, where it is native, and North America, where it is introduced. Range ''A. diadematus'' has a holarctic distribution throughout Europe and across North America, from southern Canada to Mexico, and from British Columbia to Newfoundland.Cross Spider Washington NatureMapping Project Size and markings [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araneus Alsine
''Araneus alsine'', the strawberry spider or orange wheelweaving spider, is a species of the orb-weaving spider family, Araneidae. Distribution This species has a palearctic distribution (Europe, Turkey, Caucasus, Russia, Kazakhstan, Japan). Habitat These spiders prefer moist environments. They mainly inhabit forests clearings, swampy bogs with birch and heather, wet meadows, high grass and shady places. Description ''Araneus alsine'' can reach a body length of in males, of in females. These spiders have a large, almost globular or slightly elliptical shaped opisthosoma, ranging from beige to reddish-orange, with many white-and-yellow spots spread over the surface and sometimes forming the sign of a cross. Sternum, chelicerae and legs are reddish brown. Legs show darker annulations in males. As one of its common names suggests, ''A. alsine'' appears somewhat like a strawberry. Habits In June and July ''A. alsine'' builds small webs (less than 10 or 20 cm high) nea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araneus Gemma
''Araneus gemma'', commonly known as the cat-faced spider (a name shared with '' Araneus gemmoides''), is a common outdoor orb-weaver spider found in the western United States and Canada. Like most Araneus species, ''A. gemma'' is harmless to humans. It contains a venomous toxin of low molecular weight called argiotoxin Argiotoxins represent a class of polyamine toxins isolated from the orb-weaver spider ('' Araneus gemma'' and '' Argiope lobata''). The orb-weaver spiders, also known aaraneids belong to the Araneidae spider family. This type of spider is found i ..., that antagonizes the actions of the neurotransmitter glutamate. Dopamine was also identified in the venom of ''A. gemma'' in a concentration of 4.3 nM. The web silk of the ''A. gemma'' ranges from 1 to 4 μm in diameter.David Kaplan, Kevin McGrathProtein-Based MaterialsSpringer, 1997; page 113. . References External links gemma Spiders of North America Spiders described in 1888 {{Araneidae-st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araneus Viridiventris
''Araneus viridiventris'' is a species of spiders described by Takeo Yaginuma in 1969, found in China, Taiwan, India, and Japan. ''A. viridiventris'' is included in the genus ''Araneus'' in the family Araneidae. No subspecies are listed. References Ohno, M. & T. Yaginuma. (1969) The spider fauna of the Goto islands belonging to Kyushu, Japan., ''J. Tokyo Univ. gen. Educ.'' (nat. Sci.) 12: 7-24. ''SpidCat: The World Spider Catalog''. Platnick N.I. & Raven R.J., 2008-01-07 External links viridiventris Spiders described in 1969 Spiders of Asia {{Araneidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araneus Quadratus
''Araneus quadratus'', the four-spot orb-weaver, is a common orb-weaver spider found in Europe and Central Asia, and as far as the Kamchatka Peninsula and Japan. Females can reach 17 mm in length, especially when gravid, with males around half that. They are quite variable in appearance, ranging from brown to bright orange or green, but they always have the characteristic four white spots on the abdomen. The darker color morphs are easier to identify, due to the contrast between the white spots and the rest of the body. The legs are sometimes brightly striped. The spider lives in gardens, wooded areas, or wherever there is vegetation to string an orb web across. This species builds its web close to the ground to catch jumping insects such as small grasshoppers. The female builds the more elaborate web, complete with a funnel-shaped retreat off to the side where she goes during inclement weather. The web is smaller and closer to the ground than those of other species of orb-w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araneus Asiaticus
''Araneus asiaticus'' is a spider in the genus '' Araneus'', found in Kyrgyzstan Kyrgyzstan,, pronounced or the Kyrgyz Republic, is a landlocked country in Central Asia. Kyrgyzstan is bordered by Kazakhstan to the north, Uzbekistan to the west, Tajikistan to the south, and the People's Republic of China to the ea .... References asiaticus Spiders of Asia Spiders described in 1983 {{Araneidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araneus Gemmoides
''Araneus gemmoides'', commonly known as the jewel spider (a name shared with ''Austracantha minax'') and cat-faced spider (a name shared with ''Araneus gemma''), is a common, outdoor, orb-weaver spider found in Canada and the USA. It is considered harmless and has a low-toxicity venom. ''A. gemmoides'' is a useful natural predator for insects. ''A. gemmoides'' makes its webs near lights, closed spaces, and on the sides of buildings. It can also be found under wood, overhangs, or guarded places such as animal burrows. The species occurs in varying colors, but is easily identified by the two horn-shaped growths on its relatively large abdomen. Its color changes from summer to winter. The females die within days of laying a single egg sac with hundreds of eggs. Egg sacs can survive over winter, and the emerging spiderlings eat their siblings. The babies ride strands of silk in warm air currents, which are able to transport them to locations miles away. Females have a larg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araneus Illaudatus
''Araneus illaudatus'', commonly called the Texas orb-weaver, is a species of spider belonging to the family Araneidae. It has a rather restricted range in western Texas and eastern Arizona. The female is a very large, hairy orb-weaver, up to 25 mm in length (excluding legs). The overall color is a dirty white, sometimes with a pinkish tinge. A distinctive feature is the presence of two roughly triangular dark patches at the front of the abdomen The abdomen (colloquially called the belly, tummy, midriff, tucky or stomach) is the part of the body between the thorax (chest) and pelvis, in humans and in other vertebrates. The abdomen is the front part of the abdominal segment of the to ..., each with a small white spot within. The male is very much smaller, only reaching 9 mm in length. References * * (2009)The world spider catalog version 9.5. ''American Museum of Natural History''. illaudatus Spiders of the United States Spiders described in 1936 Taxa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
