mildei has developed any lesion, and a 2006 study of 20 verified cases (main symptom: bee-sting-like pain) should kill this belief – but it won't! I'm sure yellow sac spiders will stay on "dangerous spider lists" for years to come. However, to date no human bitten by an authentic C. To do them justice, the authors didn't publish their conclusions until they had seemingly confirmed Cheiracanthium toxicity with guinea pigs, about half of which developed lesions after experimental bites. "All attributed the lesions to spider bites acquired indoors … None of the patients actually saw a spider bite him." Cheiracanthium mildei, a buff-colored spider confusingly called "yellow sac spider" was a suspect since it was the most common house spider in Boston at the time.
#Wolf spider dangerous skin#
In 1970, two respected Harvard scientists published a study of five patients with necrotic skin lesions. (Some of the original cases were probably really recluse spider bites). But the old medical myth is not dead yet it appears in textbooks and is often misapplied to other unrelated wolf spiders in other countries. None of the 515 patients developed necrosis and most suffered only mild pain. Not until 1990 was there a scientific study of 515 authentic Lycosa bite cases (with the spider kept and identified) that disproved the long-held belief. An antivenom was developed and used on many patients.
erythrognatha), well known locally as a "biter." For decades this spider was considered one of the most medically important in Brazil. No one definitely identified the actual biting spiders, but it seemed obvious to the authors that it must have been a large wolf spider, Lycosa raptoria (by some considered the same as L. In 1925, a report appeared about several Brazilian patients with severe necrotic lesions from spider bites. Myth: Yellow sac spiders, white-tailed spiders, woodlouse spiders and wolf spiders have dangerous bites.įact: See if you can detect a pattern in the following cases.
0 kommentar(er)
