A "Black Widow" has a red hourglass shape on the underside of its abdomen, but it isn't impossible to spot a spider with the infamous red mark on its upper abdomen, that would make it a "Red-Back Widow," which is found only in Australia (unless something has gone horribly wrong!)
If you don't live in Australia, it is most likely a "Northern Black Widow" which has several variations in the location and size of the red mark, usually small spots or the hourglass shape.
If neither of these is the spider you're asking about, consider the hairy jumping spider, "Whitmani" The female is black or dark gray with a bright red abdomen
The male green jumping spider has a dark red head and a bright green body. The scientific name for this spider is Mopsus Mormon.
THE ONE WITH MIXED PARENTS
The spider you are describing is likely the black widow spider. It is known for its shiny black body with a red hourglass-shaped marking on its abdomen. This spider is venomous and can be found in various parts of the world.
The Smiley Face Spider has a heart like shape on the butt.
The spider you are describing is likely the Peacock Spider, specifically the Maratus volans species. These spiders are native to Australia and are known for their colorful markings that resemble a watermelon, with a red abdomen and green and white stripes on their body. They are relatively small, measuring around 5mm in length, and are famous for their intricate courtship dances.
If its black, has a large butt and there's a red shape on its back the resembles an hourglass, then its a black widow spider and they are very poisonous
It is the most deadlyest spider apart from the red back...it is its cousin...the crizone spider
The spider you are describing sounds like a green lynx spider (Peucetia viridans). They are known for their vibrant green coloration with red and yellow markings on their back and legs. These spiders are typically found in North and South America.
I have no idea im truly sorry....
a redback spider
It's difficult to determine the exact species of spider based on color alone, so caution is advised. In general, it's best to avoid touching or handling any spider that you are not familiar with, especially if it displays bright colors or markings. If you are concerned, contact a local pest control professional for guidance.
I believe it is a type of jeweled spider.