'The' black widow Latrodectus mactans lives in North America; Mexico and the United States. The species Latrodectus tredecimguttatus does live in Spain.
Many birds will eat a spider, even a black widow. Reptiles will eat them, too, and most lizards and snakes in the desert are not dangerous. The rattlers and the Gila monster excepted, of course.
Black widow spiders live around logs and rocks any where they can make a nest
they eat there mate
California
Yes they do.
Black Widow Spiders are usually found along the Lake Michigan coast line.
No. After killing her mate, the female black widow must live on afterwards to lay the eggs.
in the desert
They mate with female Black Widows, and since the male knows that mating with the Black Widow will ultimately lead to his death by cannibalism, the black widow technically commits suicide just for the Black Widow spider to live and pass on.
you go around the woods and then find out
Around 2 years