Cheiracanthium

Disclaimer : Dedicated naturalists volunteer their time and resources here to provide this service, cheiracanthium. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. If you need expert professional advice, contact your local extension office. Contributors own the copyright to and are solely responsible for contributed cheiracanthium.

Contenidos mover a la barra lateral ocultar. Leer Editar Ver historial. Herramientas Herramientas. En otros proyectos. Wikimedia Commons Wikiespecies.

Cheiracanthium

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 Both sexes range in size from 5 to 10 millimetres 0. 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. 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. A theory that these spiders were attracted to the smell of gasoline was involved in a series of consumer vehicle callbacks in which spiderwebs had blocked fuel lines, but it has since been disproven by a study which found that the juvenile yellow sac spiders were attracted to the hose material itself. The only known species in the New World are C. They can also be found in the lower mainland of British Columbia , Canada. The genus is quite diverse in Africa and at least three or four species are known to occur in Egyptian cotton fields alone. Contents move to sidebar hide. Article Talk. Read Edit View history. Tools Tools. Download as PDF Printable version.

Consultado el cheiracanthium de mayo de Koch, Cheiracanthium longipes Thorell, Cheiracanthium longtailen Xu, Cheiracanthium ludovici Lessert, Cheiracanthium lukiense Lotz, Cheiracanthium macedonicum Drensky, Cheiracanthium madagascarense Lotz, Cheiracanthium mahajanga Cheiracanthium, Cheiracanthium malkini Lotz, Cheiracanthium mangiferae Workman, Cheiracanthium maraisi Lotz, cheiracanthium, Cheiracanthium margaritae Sterghiu, Cheiracanthium marplesi Chrysanthus, Cheiracanthium mayombense Lotz, Cheiracanthium melanostomum Thorell, Cheiracanthium mertoni Strand, Cheiracanthium mildei L. Pickard-Cambridge, — Libya, Egypt C.

Generic-looking wandering spider, most often dull yellow in color although abdomen can vary depending upon the color of recently eaten prey. Often with darkened tarsi. Identification may be limited to exclusion of other species. Mature males have a very unique and large basally-projecting spur on the palp, a feature very rare in spiders. In female C. Description: white silk, variable in shape, takes the shape of the void it fills, female makes a retreat and lays sac inside, female stays with sac to guard it, sac dimensions

Cheiracanthium mildei, the northern yellow sac spider is one of the most common spiders in Northeastern America. However, it can be found throughout the entire USA. The yellow sac spider can be identified by its greenish, yellowish color. During the daytime these spiders often hide in a small blanket of web under leaves and wood, but will often make their way into homes and hide in corners or under window sills. The abdomens are yellow to tan and often have a green tinge to the coloring. There is a darker stripe that runs lengthwise about halfway down the abdomen. The tips of their legs are often darker and the face of the cephalothorax is always darker. Yellow sac spiders have eight eyes.

Cheiracanthium

The Yellow Sac Spider is one of a group of spiders in North America whose bites are generally considered to be medically significant. The Yellow Sac Spider is very common in most of the United States and is the cause of a lot of spider bites and other unwanted encounters. Yellow Sac Spiders are light yellow to pale yellowish green, sometimes with a orange-brown stripe on top of the abdomen. The cephalothorax fused head and thorax of the Yellow Sac Spider is orange brown to reddish and the abdomen is pale yellow to light grey. Males are more slender, with a slightly larger leg span. The first pair of legs is longer than the fourth. Yellow Sac Spiders have eight similarly-sized dark eyes arranged in two horizontal rows. Yellow Sac Spiders take shelter in flattened silk tubes during the day and move about to hunt during the night. Yellow Sac Spiders often live in houses and can frequently be found crawling upon walls or other vertical surfaces.

Cfjc today

We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. Genus of spiders. An etymological dictionary of North American spider genus names. Hidden categories: Articles with short description Short description is different from Wikidata Articles with 'species' microformats Articles containing potentially dated statements from August All articles containing potentially dated statements Commons link is on Wikidata Taxonbars with 20—24 taxon IDs. Identification may be limited to exclusion of other species. Mature males have a very unique and large basally-projecting spur on the palp, a feature very rare in spiders. There may appear to be misspellings of the genus name in the literature. This spider was uncommon in North America before the s but has since spread across the continent. Cushing and V. The dorsal tibial apophysis on the palp of C. Zeh'sche Buchhandlung. See the World Spider Catalog. Koch family Miturgidae Recognition and diagnostic features Generic-looking wandering spider, most often dull yellow in color although abdomen can vary depending upon the color of recently eaten prey. Ubick, P.

Disclaimer : Dedicated naturalists volunteer their time and resources here to provide this service. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. If you need expert professional advice, contact your local extension office.

Indiana University. Gillespie, and K. This genus has previously been placed in Clubionidae, Miturgidae, and Eutichuridae. Leer Editar Ver historial. Cheiracanthium punctorium Villers, Roth eds. From Greek, meaning "hand spinelet", referring to the backwardly directed process on the cymbium of the male palp. Both sexes range in size from 5 to 10 millimetres 0. Koch, — Australia Queensland C. Ubick, P. However, this may not be true. It is likely that C. Painful bites may be incurred from species such as C.