''Latrodectus mirabilis'', sometimes (but rarely), known as black widow is a spider species that is native to most of South America in the genus '' Latrodectus'' of the family '' Theridiidae''.

Description

Instead of an 'hourglass' pattern on the ventral side of this species, unlike other ''Latrodectus'' species, This spider has a red rectangle on it's ventral side.

Venom

This spider's bite has never been recorded but as with other ''Latrodectus'' species most people think it's bites are venomous and

Latrodectism Latrodectism () is the illness caused by the bite of ''Latrodectus'' spiders (the black widow spider and related species). Pain, muscle rigidity, vomiting, and sweating are the symptoms of latrodectism. There are several spider species all named b ...

happens when bitten.

Look-alikes

The False Black Widow looks more like this species than any other in Latrodectus except the Brown Widow

References

Research Gate
mirabilis {{Spider-stub