Interesting facts about Black Widow

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We found 14 interesting facts about Black Widow

The largest representative of the Omatnikov family.

These spiders have a bad reputation due to their venom. They inject a neurotoxin into the victim's body, which can even kill a person.

Not every black widow will be dangerous to us. Only females, thanks to their rather long poisonous spines, are able to pierce human skin. Pain, muscle stiffness, vomiting and sweating are typical symptoms of a bite. The disease is rarely fatal in humans, although pets may not survive it.

An antidote to black widow venom was not developed until the 20s.


This species is found in North America.


The body length (excluding legs) of an adult female is 8-13 mm.

Males are smaller and reach a length of 3 to 6 mm.

These spiders have relatively long legs compared to the rest of their body.


Females are well known for their distinctive black and red coloration and hourglass-like belly pattern.

Males resemble juveniles or are colored a shade of purple.

Juveniles differ significantly from adults.

The abdomen is grayish-black to black, with white stripes across it and mottled with yellow and orange speckles.

Black widows typically hunt insects, preferring ants, but also feed on centipedes and other crustaceans.

Sometimes they prey on other arachnids.

After copulation, the male must quickly move away.

If he does not do this in time, the female may eat him.

The female lays eggs in cocoons. Each of them contains from 100 to 400.

Young spiders hatch in about 20 – 30 days. Of all the eggs laid, only about a hundred spiders survive.

About 30 individuals survive their first moult.

The reasons are the lack of shelter and food for the young, as well as acts of cannibalism.

Spiders reach sexual maturity in about 4 months.

However, they reach full maturity a little later, at the age of 6 to 9 months.

The black widow's web is so strong that even a mouse can get caught in it.

It is made of very durable silk, which creates a three-dimensional mesh for inattentive animals.

Having caught the victim in its web, the hidden spider comes out of its hiding place and approaches it.

First, he injects poison to incapacitate the victim. It starts working in about 10 minutes, and until then the spider must hold it constantly.

Having paralyzed the victim, the spider injects digestive enzymes into the wound on its body.

The prey prepared in this way is dragged into the shelter and only there does it feed.

The lifespan of females is up to three years, and males usually do not exceed four months.

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