Curious Facts
The Black Widow is considered the most venomous spider in North America.
Males about half the female's size, with smaller bodies, and longer legs
Males usually have yellow and red bands and spots over the back as do the female in immature stages.
Females usually have a reddish hourglass shape on the underside of her abdomen. Some species have a series of red spots and two crosswise bars on the underbelly.
The venom of the black widow spider is 15 times as toxic as the venom of the prairie rattlesnake.
Only the female Black Widow is dangerous to humans; males and juveniles are harmless.
Newly hatched spiderlings are predominately white or yellowish-white, gradually acquiring more black and varying amounts of red and white with each molt.
The female Black Widow will, on occasion, kill and eat the male after they mate.
Vital Stats
Weight: 1 gram. Length: 1-1.5" Span: 1-3"
Sexual Maturity: 70-90 days. Mating Season: Spring
Incubation: 14-30 days No. of Eggs: 250-700/sac
Birth Interval: 4 to 9 egg sacs/summer
Lifespan: up to 3 years
Typical diet: insects
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