The Brown Recluse Spider (Loxosceles reclusa) belongs to the genus Loxosceles. In severe cases, the venom can damage deeper tissues. Recluse spiders are a venomous genus of spider known for their venomous necrotic (death of cells and living tissue) bite. They are also known as fiddle-back or violin spiders. Serious illness and death are rare. There is no antidote; treatment includes … We have been trying to no avail for the last 4 days to get some help my 3.5 yr old has been bit, the doctors here did not believe me and kept telling me to wait and see because these bites are very rare. Unfortunately, such a wound can easily be misdiagnosed; the identity of the lesion must be confirmed so that appropriate treatment can be administered and complications avoided. According to the University of California, Davis, many more common types of spider or insect bites are misdiagnosed as brown recluse bites, so if there are multiple lesions on one person at the same time, especially if the lesions are on widely separated … Diagnosis of a Brown Recluse Spider Bite. Brown recluse spider. Progression of the lesion results in a central bluish necrotic depression with surrounding erythema. The complex venom causes injury and death (necrosis) of the surrounding tissues. Bites most commonly occur when a person disturbs a spider after he or she puts on clothes that were left on the floor or rolls over in bed onto the arthropod. 6 In the 48 hours after a bite, these digestive enzymes cause a progressive necrosis of fat under the skin. If you see you a spider bite you, save the spider if possible for later identification. The brown recluse spider (Loxosceles reclusa) is the most common of the Loxosceles species in the United States. 1 Human Loxosceles bites were first described in the literature1 in 1879 and were first associated with necrosis 2 in 1958. It has a nocturnal hunting habit so it usually bite when the victim is soundly asleep. A brown recluse spider bite is diagnosed through a physical examination and questions about the bite. If you see you a spider bite you, save the spider if possible for later identification. You should be prepared to describe the spider, where and when the bite took place, and what you were doing at the time. Cause for concern over a spider bite will depend on the person's possible allergic reaction, or if the spider who bites is a dangerous species such as a black widow or brown recluse 1. The bite of a recluse spider is venomous. Spiders lack a mechanical digestive system; their so-called venom actually is a set of enzymes that liquefy a prey’s tissues. Most brown recluse spider bites take about 3 weeks to heal. Your doctor will ask what your main symptoms are, when they began, and how they have … The bite of the brown recluse spider (Loxosceles reclusa) has the potential for severe tissue necrosis. There are over 100 species of the Recluse spider, the Brown Recluse spider being the best known of the species. (If you are able to safely capture and transport the spider, bring it with you to show your doctor.) • Persons who have been bitten by a brown recluse spider have pruritus, burning pain, erythema, and swelling at the bite site within 2 to 6 hours. The brown recluse spider is not really aggressive but it bites when crashed or pressed. Natural treatments for a brown recluse spider bite. 1 Other Loxosceles species in the Southwest cause fewer reported bites, and their envenomations are typically less severe. (Pictured left). 10 year old boy developed necrotic rash, secondary hemophagocytic lymphohistiocytosis from a brown recluse spider bite (J Clin Immunol 2014;34:544) 22 year old woman with severe haemolytic anaemia with erythrophagocytosis following the bite of a brown recluse spider (Br J Haematol 2014;167:1) Although spider bites can range from being very mild to very severe and venomous, spiders don't usually attack unless they feel threatened.