Cheiracanthium

Contenidos mover a la barra lateral ocultar. Leer Editar Ver historial. Herramientas Cheiracanthium.

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.

Cheiracanthium

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. Contributors own the copyright to and are solely responsible for contributed content. Click the contributor's name for licensing and usage information. Upcoming Events Registration is open for the BugGuide gathering in Idaho July Moth submissions from National Moth Week Photos of insects and people from the BugGuide gathering in New Mexico , July Photos of insects and people from the Spring gathering in Louisiana , April May 2 Photos of insects and people from the gathering in Louisiana , July Photos of insects and people from the gathering in Virginia , July Previous events. Synonyms and other taxonomic changes. See the World Spider Catalog. Chiracanthium is considered by the World Spider Catalog as "an unjustified emendation. This genus has previously been placed in Clubionidae, Miturgidae, and Eutichuridae. From Greek, meaning "hand spinelet", referring to the backwardly directed process on the cymbium of the male palp. Species of Cheiracanthium are also characterized by having relatively thinner legs and more robust bodies than Clubiona. The genitalia are the best way to identify the two species, as the two species are similar in appearance.

PMID Though they are beneficial predators in agricultural fields, cheiracanthium, they are also known to be mildly venomous to humans.

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.

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. Contributors own the copyright to and are solely responsible for contributed content. Click the contributor's name for licensing and usage information. Upcoming Events Registration is open for the BugGuide gathering in Idaho July Moth submissions from National Moth Week Photos of insects and people from the BugGuide gathering in New Mexico , July Photos of insects and people from the Spring gathering in Louisiana , April May 2 Photos of insects and people from the gathering in Louisiana , July Photos of insects and people from the gathering in Virginia , July Previous events.

Cheiracanthium

Cheiracanthium, or yellow sac spiders, are pretty special. While most live in the Old World, a few like the northern yellow sac spider and the black-footed yellow sac spider call the New World home. The female spiders produce about five egg sacs in one go, with 30 — 48 eggs in each of them. The eggs laid in autumn are covered in a silken sac. The spiderlings hatch the following spring and stay inside the silken sac till they develop the ability to find food for themselves independently. They do not build webs but construct a sac or silken tube within a leaf, woodpiles, or any protected area to take shelter during the day.

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Edwards, R. Vetter, R. Roth eds. Epigyna: C. Consultado el 20 de mayo de Clickable Guide. Hogg, B. There may appear to be misspellings of the genus name in the literature. Isbister, S. Wikimedia Commons Wikiespecies. Paquin, P. Last updated: idtools. Introduced to North America, Argentina C.

Cheiracanthium mildei, the northern yellow sac spider is one of the most common spiders in Northeastern America.

World Spider Catalog. Identification " Cheiracanthium are distinguished from the closely related species of Clubiona by lacking a conspicuous dorsal groove in the midline of the carapace, the lack of a cluster of long curved erect setae at the anterior end of the abdomen, by having the first pair of legs the longest, and by having a long, pointed spur extending back from the cymbium over the tibia. Egg sac 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 Bush and L. Pickard-Cambridge, — Libya, Egypt C. Leer Editar Ver historial. They can also be found in the lower mainland of British Columbia , Canada. Koch, Cheiracanthium longipes Thorell, Cheiracanthium longtailen Xu, Cheiracanthium ludovici Lessert, Cheiracanthium lukiense Lotz, Cheiracanthium macedonicum Drensky, Cheiracanthium madagascarense Lotz, Cheiracanthium mahajanga Lotz, Cheiracanthium malkini Lotz, Cheiracanthium mangiferae Workman, Cheiracanthium maraisi Lotz, Cheiracanthium margaritae Sterghiu, Cheiracanthium marplesi Chrysanthus, Cheiracanthium mayombense Lotz, Cheiracanthium melanostomum Thorell, Cheiracanthium mertoni Strand, Cheiracanthium mildei L. Retrieved American Arachnological Society. Also, Cheiracanthium was in the family Clubionidae for decades but was recently transferred to the Miturgidae.