Latrodectus mirabilis

Latrodectus mirabilis
Latrodectus mirabilis female with possibly Nephilingis cruentata of unknown gender
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Chelicerata
Class:	Arachnida
Order:	Araneae
Infraorder:	Araneomorphae
Family:	Theridiidae
Genus:	Latrodectus
Species:	L. mirabilis
Binomial name
Latrodectus mirabilis (Holmberg, 1876, Argentina)

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, this spider has a red rectangle on its ventral side.

Venom

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

Look-alikes

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

References

Research Gate