The black widow spider is a group of spiders which includes the southern black widow (Latrodectus mactans), the northern black widow (L. variolus), and the western black widow (L. hesperus). As the name indicates, the southern widow is primarily found in (and is indigenous to) the southeastern United States, ranging from Florida to New York, and west to Texas, Oklahoma and Arizona, where they run particularly rampantly. The northern black widow is found primarily in the northeastern United States and southeastern Canada (only on the Bruce Peninsula), though its ranges overlap that of L. mactans quite a bit. The western widow is found in the western United States, as well as in southwestern Canada and much of Mexico.
The black widow spider, in terms of (1) the total number of reported deaths due to a bite by the spider, and (2) the percentage of reported bites resulting in fatalities, is not as deadly as popularly believed.
Contrary Evidence and ArgumentsEdit