Southern black widow

''Latrodectus mactans'', the Southern black widow, is a highly venomous species of spider in the genus ''Latrodectus''. They are well known for the distinctive black and red coloring of the female of the species and for the fact that she will occasionally eat her mate after reproduction. The species is native to the United States of America, Canada and Mexico. The venom is seldom fatal to healthy humans, and less than one percent of bitten people die.