Introverted with each other, irksome to food sources:
The name black widow spider accords well with the arachnid in question's adult appearance and behavior. Candy cane-striped spiderlings within a year become:
• dull black, lateral red and white-striped, narrow-bellied, solitary widower-like males; or
• glossy black, round-bellied, solitary widow-like females with red hourglass-like or two-dotted under-abdominal markings.
They count among the world's most venomous animals since a Lactrodectus genus member's bite causes all-body paralysis and liquefied interiors, to be sipped out, in insects and muscle pain and temporary paralysis in humans. Few predators, excepting mud-daubing wasps (Crabronidae, Sphecildae families) of similarly paralyzing venom, dare to stalk black widow spiders since black and red are Mother Nature's warnings of crass behaviors, smells, and tastes.