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Topic: Violin spider


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  EB1548: Spiders
Spiders have four pair of legs, with a body divided into two regions (cephalothorax and abdomen), while insects have three pair of legs and the body divided into three regions: head, thorax, and abdomen.
These spiders also are known as fiddlebacked or violin spiders, as they have a dark violin pattern on the front portion of the body.
Bites commonly occur as a spider is squeezed against the body when a homeowner picks up a firewood log with a spider on it or when a spider is located in an article of clothing and is squeezed when the clothing is put on.
cru.cahe.wsu.edu /CEPublications/eb1548/eb1548.html   (2943 words)

  
 Entomology - Myth of the Brown Recluse
Spiders are one group of arthropods that are very well known by the common person yet are terribly misunderstood; because of the rare occasion of a deleterious venom incident, almost all spiders are lumped into the category of "squish first and ask questions later".
The native violin spiders are not considered to be as dangerous as the brown recluse, but then again, many brown recluse bites are medically unremarkable.
Violin spiders are very easily identifiable in that they have 6 eyes, in 3 pairs (dyads) arranged in a U-shaped line on the cephalothorax (link here for pictures).
spiders.ucr.edu /myth.html   (3482 words)

  
 Hot Shots Santa Barbara Pest Control Spiders Exterminator
Distinguishing characteristics are the presence of three pairs of eyes arranged in a semicircle on the forepart of the head and a violin-shaped, dark marking immediately behind the semicircle of eyes with the neck of the violin pointing towards the bulbous abdomen.
Both the male and female brown recluse spiders are similar in appearance and equally toxic.
Outdoors, the spider may be found in sheltered corners among debris, in wood piles, under loose bark and stones, in old barns, storage sheds and garages.
www.hotshotspc.com /spiders.htm   (999 words)

  
 CPCS: Spider Bites
Spiders generally prefer to live in undisturbed areas such as corners of the house or the eaves or in the garden where they can catch insects in peace.
The violin marking is configured with the base of the violin beginning at the eyes and the neck of the violin pointing toward the "waist." The violin marking is difficult to see clearly.
Spider bites by this spider are becoming recognized more often in California, which may be due to the fact that the spider is becoming better known.
www.calpoison.org /public/spiders.html   (2229 words)

  
 Spider Family Key   (Site not responding. Last check: 2007-10-17)
Trapdoor spiders (Ctenizidae) 10-33 mm (3/8-1 1/4 in) long; 6 eyes, arranged in 3 groups; jaws attached to front of head and move up and down, unlike many other spiders, in which they move x-wise.
Violin spider (Loxoscelidae) male: 6 mm (1/4 in) long; female: 11mm (3/8 in) long; 6 eyes, arranged in 3 pairs; normal cephalothorax; violin shaped mark on the dorsal surface of the cephalothorax.
Wolf spiders (Lycosidae) 3-35 mm (1/8-1 3/8 in) long; 8 dark eyes of unequal size, arranged in 3 rows; back row of eyes are large (like car-headlights!) Wolf spiders are often found running along the ground, as well as in leaf litter, under logs, or on docks.
www.jason.org /expeditions/jason6/spiders/key.html   (859 words)

  
 Brown Recluse Spider
The brown recluse spider is uncommon in Ohio.
These spiders are also commonly referred to as "fiddleback" spiders or "violin" spiders because of the violin-shaped marking on the top surface of the cephalothorax (fused head and thorax).
The lesion from a brown recluse spider bite is a dry, blue-gray or blue-white, irregular sinking patch with ragged edges and surrounding redness--termed the "red, white, and blue sign." The lesion usually is 1½ inches by 2¾ inches or smaller.
ohioline.osu.edu /hyg-fact/2000/2061.html   (1894 words)

  
 Spider Bites, Robert Wood Johnson University Hospital, New Brunswick, NJ, 08903
Most spiders found in the United States are harmless, with the exception of the fl widow and the brown recluse spiders (sometimes called the violin spider).
The brown recluse spider, or violin spider, is about 1 inch long and has a violin shaped mark on its upper back.
A fl widow spider is a small, shiny, fl, button-shaped spider with a red hourglass mark on its abdomen, and prefers warm climates.
www.rwjuh.edu /health_information/adult_nontrauma_spider.html   (586 words)

  
 Hobo Spider Web Site: Recluse Spiders
Recluse spiders were the first spider group to be recognized as a causative agent of the disease state now known as necrotic arachnidism, and this condition, when caused by a recluse spider, is properly termed loxoscelism.
The apparent presence of a violin-like marking on the cephalothorax or elsewhere is not sufficient to identify a spider as belonging to the recluse group.
Bites by the recluse spiders should (for the moment) be treated in the same fashion as has been outlined for the hobo spider.
www.srv.net /~dkv/hobospider/recluse.html   (852 words)

  
 Brown Recluse First Aid Kit - Spider Information
Brown Recluse spiders, with the scientific name of Loxosceles reclusa are one of the few spiders in the United States that are known to be very harmful to humans.
The most distinguishing mark on a brown recluse spider is the presence of a dark brown or fl violin or fiddle on its back with the violin's "neck" pointing toward the rear of its body.
Spider traps are most effective at reducing Brown Recluse populations from these locations your home.
www.brown-recluse.com /spiderinfo.html   (1994 words)

  
 eMedicine - Spider Bite, Brown Recluse : Article Excerpt by: Samuel M Keim, MD   (Site not responding. Last check: 2007-10-17)
Brown recluse spiders are native to the Midwestern and Southeastern states.
Features: Brown recluse spiders are notable for their characteristic violin pattern on the back of the cephalothorax—the body part to which the legs attach.
The violin pattern is seen with the base of the violin at the head of the spider and the neck of the violin pointing to the rear.
www.emedicine.com /aaem/byname/spider-bite-brown-recluse.htm   (415 words)

  
 brown spider   (Site not responding. Last check: 2007-10-17)
This is a small, inconspicuous brown spider with slightly darker brown markings on the cephalothorax.
These secretive spiders are found in debris in the desert or around dwellings in outlying areas.
The bite of this spider is potentially dangerous to humans: reportedly some have suffered amputation and even death as the result of bites.
www.desertmuseum.org /books/nhsd_brown_spider.html   (228 words)

  
 violin spider - HighBeam Encyclopedia
Brown recluse spider bites to the head: three cases and a review.
Brown recluse spider envenomation: dermatologic application of hyperbaric oxygen therapy.
Although you cannot see them, spiders are hiding in homes for the winter.
www.encyclopedia.com /doc/1E1-X-violnspdr.html   (351 words)

  
 Brown Recluse Spider   (Site not responding. Last check: 2007-10-17)
One spider in Kentucky that is potentially dangerous is the brown recluse, sometimes referred to as the violin or fiddleback spider because of the violin-shaped marking on its dorsum.
Many harmless brown spiders are mistaken for the brown recluse, so it is prudent to have specimens confirmed by an entomologist or knowledgeable pest control firm.
Outdoor populations of brown recluse spiders are less common in the northern portions of its range.
www.uky.edu /Ag/Entomology/entfacts/struct/ef631.htm   (2188 words)

  
 Recluse Spiders by Jim Cornish, Gander, Newfoundland Canada
Most spiders have eight eyes that typically are arranged in two rows of four but recluse spiders have six equal-sized eyes arranged in three pairs, called dyads.
The brown recluse spider is not common in Ohio.
The brown recluse spider is one of six poisonous kinds of spiders in the United States.
www.cdli.ca /CITE/spidersrecluse.htm   (622 words)

  
 Brown Recluse Spider Information - Eco Systems Pest Control, Massachusetts   (Site not responding. Last check: 2007-10-17)
The brown recluse spider is one of two dangerously poisonous spiders found in the United States.
For example, spitting spiders are similar to the recluses in that they have six eyes, but they have many fl spots and lines on their bodies that recluses do not have.
Virtually every spider that is tan or brown has been turned in to entomologists as a possible brown recluse..
www.ecopestcontrol.com /brownreclusespider.htm   (930 words)

  
 Dangerous Spider Bite Symptoms by MedicineNet.com
Bites from most (non-poisonous) spiders cause local redness, irritation, and pain that usually can be treated at home using an over-the-counter pain reliever along with application of cooling packs or a wet cloth to relieve swelling.
The fl widow spider is a small, fl, shiny spider with a red hourglass marking on its belly.
The brown recluse spider is sometimes termed a “violin spider.” It is about an inch long and has a marking resembling a violin on the upper part of its back.
www.medicinenet.com /script/main/art.asp?articlekey=61266   (634 words)

  
 BRS - The Spider
Recluse spiders vary in size from the size of a dime up to a half-dollar.
These spiders have been reported throughout the United States but are found more often in the South.
Bites occur when the spiders are forced into contact, such as when a person is cleaning out the attic or rolls over on it in bed.
www.highway60.com /mark/brs/spider.htm   (356 words)

  
 Brown Recluse Spider Bites   (Site not responding. Last check: 2007-10-17)
The Loxosceles recluse or Brown recluse spider is a common spider to Nueces county.
I have seen a number of spider bites to the foot, and this was one of the better outcomes.
In this gentleman's case, a shoe not worn, placed in a dark, cool closet was the ideal habitat for the brown recluse spider.
www.podassociates.net /podassociates_web_009.htm   (970 words)

  
 Brown Recluse Spider Bite-Topic Overview
Some people have a severe, systemic (whole-body) reaction to brown recluse spider bites, including the rapid destruction of red blood cells and anemia (hemolytic anemia).
A brown recluse spider bite is diagnosed through a physical examination and questions about the bite.
You should be prepared to describe the spider, where and when the bite took place, and what you were doing at the time.
www.webmd.com /a-to-z-guides/Brown-Recluse-Spider-Bite-Topic-Overview   (584 words)

  
 Brown Recluse Spider   (Site not responding. Last check: 2007-10-17)
Because of violin-like dark pattern on their back (dorsal side of the cephalothorax) they are also known as fiddle or violin spiders.
Another characteristic to use in identifying brown recluse spiders from other common house spiders is their eye number and arrangement.
If you are bitten by a spider, kill (with minimal smashing) the spider and bring it with you for identification when you seek medical attention.
kaston.transy.edu /reclusa.html   (346 words)

  
 Spider Bites - Envenomation
All spiders (except the family Uloboridae) have venom glands but not all are venemous to man. In fact very few species pose a threat to man. Some spider bites might need medical attention even if the species is recognised as not being venomous to man as secondary infections can occur.
The venom of violin spider (Loxosceles) is also cytotoxic with similar symptoms to the sac spider.
In this venom category it is only the back button spider, Latrodectus indistinctus, bite that would require urgent medical attention although Latrodectus geometricus envenomation will also require medical attention especially in the case of children, the elderly.
www.museums.org.za /bio/spiderweb/bites.htm   (887 words)

  
 BugInfo.com | Information on All Your Household Bugs and Pests   (Site not responding. Last check: 2007-10-17)
The Violin Spider is one of several species of spiders in a group called Loxosceles, and they are characterized by a rather distinct "violin" shaped marking on the top of their thorax.
The Black Widow is one of the few spiders in the U.S. that injects a nerve toxin that may affect the entire body and cause a variety of possible symptoms.
According to spider experts at the University of California it is felt that the vast majority of the times "brown recluse bite" is diagnosed by a doctor it actually is a bacterial infection - the so-called "flesh-eating bacteria".
www.buginfo.com /articles/vspdr.cfm   (1313 words)

  
 Common Childhood Injuries and Poisonings - Spider Bites
Most of the 20,000 species of spiders found in the United States are poisonous, but their fangs are too short or too fragile to break through human skin.
In the United States, the two spiders that can cause serious problems are the fl widow and the brown recluse spiders (sometimes called the violin spider).
Widow spider bites release a toxin that can cause damage to the nervous system, thus, emergency medical treatment is necessary.
healthcare.utah.edu /healthinfo/pediatric/poison/spider.htm   (647 words)

  
 Brown Recluse Spider (Loxosceles reclusa)
On the spiders cephalothorax the brown recluse has a distinctive violin shaped marking, hence the name violin spider.
Immediately in front of the marking is three sets of two eyes, unlike a spiders normal eight eyes, arranged in a semicircle.
In the winter time these spiders do not even have to leave their shelter.
www.thebigzoo.com /Animals/Brown_Recluse_Spider.asp   (324 words)

  
 Los Angeles Area Gets a New Spider - An English-Zone.Com Reading Activity
The live, venomous spider, along with its egg sac containing up to 100 baby spiders, is currently on public display in the Museum’s Insect Zoo.
Most spiders in Southern California are unable to puncture human skin and if they do, their venom would not be harmful to humans.
The Violin spider, often misidentified as the Brown Recluse, is a fast little spider measuring only a half-inch as an adult.
www.english-zone.com /reading/spider.html   (917 words)

  
 eMedicine - Spider Bite, Brown Recluse : Article by Samuel M Keim, MD   (Site not responding. Last check: 2007-10-17)
The brown recluse spider and its characteristic violin markings.
Blistering caused by the bite of a brown recluse spider.
Hobbs GD, Harrell RE Jr: Brown recluse spider bites: a common cause of necrotic arachnidism.
www.emedicine.com /aaem/topic412.htm   (2311 words)

  
 Brown recluse spider - Wikipedia, the free encyclopedia
These spiders frequently build their webs in woodpiles and sheds, closets, garages, and other places that are dry and generally undisturbed.
However, the bites from these spiders are not known to produce the severe symptoms that often follow from a recluse spider bite, and the level of danger posed by each has been called into question.
In these studies, scientists examined case studies of bites in which the spider in question was positively identified by an expert, and found that the incidence of necrotic injury diminished significantly when "questionable" identifications were excluded from the sample set.
en.wikipedia.org /wiki/Brown_recluse_spider   (1595 words)

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