|
Eratigena Vomeroi
''Eratigena'' is a genus of spider in the family Agelenidae. Most of its species were moved from the genus ''Tegenaria'' in 2013. Which is what this genus is named after, being an anagram of ''Tegenaria''. Two species that frequently build webs in and around human dwellings are now placed in this genus. ''Eratigena agrestis'' is the hobo spider, native to Europe and Central Asia, introduced to North America. ''Eratigena atrica'' is the giant house spider, native to Europe and also introduced into North America. Description They are medium to large spiders. Two symmetrical dark bands are present dorsally on the carapace, which can be serrated (as pictured) or reduced, usually to three or four conspicuous triangles. They also have plumose hairs on the carapace, legs, and opisthosoma. Their rows of eyes are only slightly curved, in either direction. Taxonomy Phylogeny Species now placed in the genus ''Eratigena'' were previously placed in ''Tegenaria'' and ''Malthonica''. In 2013, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eratigena Atrica
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] |
Spider Anatomy
The anatomy of spiders includes many characteristics shared with other arachnids. These characteristics include bodies divided into two tagmata (sections or segments), eight jointed legs, no wings or antennae, the presence of chelicerae and pedipalps, simple eyes, and an exoskeleton, which is periodically shed. Spiders also have several adaptations that distinguish them from other arachnids. All spiders are capable of producing silk of various types, which many species use to build webs to ensnare prey. Most spiders possess venom, which is injected into prey (or defensively, when the spider feels threatened) through the fangs of the chelicerae. Male spiders have specialized pedipalps that are used to transfer sperm to the female during mating. Many species of spiders exhibit a great deal of sexual dimorphism. External anatomy Spiders, unlike insects, have only two main body parts ( tagmata) instead of three: a fused head and thorax (called a cephalothorax or prosoma) and a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eratigena Edmundoi
''Eratigena'' is a genus of spider in the family Agelenidae. Most of its species were moved from the genus ''Tegenaria'' in 2013. Which is what this genus is named after, being an anagram of ''Tegenaria''. Two species that frequently build webs in and around human dwellings are now placed in this genus. ''Eratigena agrestis'' is the hobo spider, native to Europe and Central Asia, introduced to North America. ''Eratigena atrica'' is the giant house spider, native to Europe and also introduced into North America. Description They are medium to large spiders. Two symmetrical dark bands are present dorsally on the carapace, which can be serrated (as pictured) or reduced, usually to three or four conspicuous triangles. They also have plumose hairs on the carapace, legs, and opisthosoma. Their rows of eyes are only slightly curved, in either direction. Taxonomy Phylogeny Species now placed in the genus ''Eratigena'' were previously placed in ''Tegenaria'' and ''Malthonica''. In 2013, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eratigena Duellica
''Eratigena duellica'', the giant house spider, is a species of funnel weaver in the spider family Agelenidae. It is found in Canada, the United States, and Europe. The related species ''Eratigena atrica'' is also called the 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. T .... ''Eratigena atrica'' was transferred from the genus ''Tegenaria'' in 2013. It was considered the same species as '' Eratigena atrica'' until 2018, when ''Eratigena duellica'', '' Eratigena saeva'', and ''Eratigena atrica'' were restored as separate species. References Agelenidae Spiders described in 1875 {{agelenidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eratigena Decora
''Eratigena'' is a genus of spider in the family Agelenidae. Most of its species were moved from the genus ''Tegenaria'' in 2013. Which is what this genus is named after, being an anagram of ''Tegenaria''. Two species that frequently build webs in and around human dwellings are now placed in this genus. ''Eratigena agrestis'' is the hobo spider, native to Europe and Central Asia, introduced to North America. ''Eratigena atrica'' is the giant house spider, native to Europe and also introduced into North America. Description They are medium to large spiders. Two symmetrical dark bands are present dorsally on the carapace, which can be serrated (as pictured) or reduced, usually to three or four conspicuous triangles. They also have plumose hairs on the carapace, legs, and opisthosoma. Their rows of eyes are only slightly curved, in either direction. Taxonomy Phylogeny Species now placed in the genus ''Eratigena'' were previously placed in ''Tegenaria'' and ''Malthonica''. In 2013, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eratigena Caverna
''Eratigena'' is a genus of spider in the family Agelenidae. Most of its species were moved from the genus ''Tegenaria'' in 2013. Which is what this genus is named after, being an anagram of ''Tegenaria''. Two species that frequently build webs in and around human dwellings are now placed in this genus. ''Eratigena agrestis'' is the hobo spider, native to Europe and Central Asia, introduced to North America. ''Eratigena atrica'' is the giant house spider, native to Europe and also introduced into North America. Description They are medium to large spiders. Two symmetrical dark bands are present dorsally on the carapace, which can be serrated (as pictured) or reduced, usually to three or four conspicuous triangles. They also have plumose hairs on the carapace, legs, and opisthosoma. Their rows of eyes are only slightly curved, in either direction. Taxonomy Phylogeny Species now placed in the genus ''Eratigena'' were previously placed in ''Tegenaria'' and ''Malthonica''. In 2013, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eratigena Bucculenta
''Eratigena'' is a genus of spider in the family Agelenidae. Most of its species were moved from the genus ''Tegenaria'' in 2013. Which is what this genus is named after, being an anagram of ''Tegenaria''. Two species that frequently build webs in and around human dwellings are now placed in this genus. ''Eratigena agrestis'' is the hobo spider, native to Europe and Central Asia, introduced to North America. ''Eratigena atrica'' is the giant house spider, native to Europe and also introduced into North America. Description They are medium to large spiders. Two symmetrical dark bands are present dorsally on the carapace, which can be serrated (as pictured) or reduced, usually to three or four conspicuous triangles. They also have plumose hairs on the carapace, legs, and opisthosoma. Their rows of eyes are only slightly curved, in either direction. Taxonomy Phylogeny Species now placed in the genus ''Eratigena'' were previously placed in ''Tegenaria'' and ''Malthonica''. In 2013, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eratigena Blanda
''Eratigena'' is a genus of spider in the family Agelenidae. Most of its species were moved from the genus ''Tegenaria'' in 2013. Which is what this genus is named after, being an anagram of ''Tegenaria''. Two species that frequently build webs in and around human dwellings are now placed in this genus. ''Eratigena agrestis'' is the hobo spider, native to Europe and Central Asia, introduced to North America. ''Eratigena atrica'' is the giant house spider, native to Europe and also introduced into North America. Description They are medium to large spiders. Two symmetrical dark bands are present dorsally on the carapace, which can be serrated (as pictured) or reduced, usually to three or four conspicuous triangles. They also have plumose hairs on the carapace, legs, and opisthosoma. Their rows of eyes are only slightly curved, in either direction. Taxonomy Phylogeny Species now placed in the genus ''Eratigena'' were previously placed in ''Tegenaria'' and ''Malthonica''. In 2013, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eratigena Barrientosi
''Eratigena'' is a genus of spider in the family Agelenidae. Most of its species were moved from the genus ''Tegenaria'' in 2013. Which is what this genus is named after, being an anagram of ''Tegenaria''. Two species that frequently build webs in and around human dwellings are now placed in this genus. ''Eratigena agrestis'' is the hobo spider, native to Europe and Central Asia, introduced to North America. ''Eratigena atrica'' is the giant house spider, native to Europe and also introduced into North America. Description They are medium to large spiders. Two symmetrical dark bands are present dorsally on the carapace, which can be serrated (as pictured) or reduced, usually to three or four conspicuous triangles. They also have plumose hairs on the carapace, legs, and opisthosoma. Their rows of eyes are only slightly curved, in either direction. Taxonomy Phylogeny Species now placed in the genus ''Eratigena'' were previously placed in ''Tegenaria'' and ''Malthonica''. In 2013, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eratigena Balearica
Eratigena balearica is a species of spider in the genus ''Eratigena''. Info ''Distribution'': Balearic Islands The Balearic Islands ( es, Islas Baleares ; or ca, Illes Balears ) are an archipelago in the Balearic Sea, near the eastern coast of the Iberian Peninsula. The archipelago is an autonomous community and a province of Spain; its capital is ... References ''Eratigena balearica'' at the World Spider Catalog Spiders of Europe Spiders described in 1978 {{Agelenidae-stub ... [...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] |
Eratigena Arganoi
''Eratigena arganoi'' is a species of spider in the genus ''Eratigena ''Eratigena'' is a genus of spider in the family Agelenidae. Most of its species were moved from the genus ''Tegenaria'' in 2013. Which is what this genus is named after, being an anagram of ''Tegenaria''. Two species that frequently build webs i ...'' found in Italy. References Spiders described in 1971 Spiders of Europe Agelenidae {{Agelenidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
