<Li> Latrodectus mactans (Fabricius, 1775)--probably native to North America only (introduced elsewhere) </Li> <Li> Latrodectus menavodi Vinson, 1863--Madagascar, Comoro Is., Aldabra </Li> <Li> Latrodectus mirabilis (Holmberg, 1876)--Argentina </Li> <Li> Latrodectus obscurior Dahl, 1902--Cape Verde Is., Madagascar </Li>

Where do black widow spiders live in the us