It sounds like the harmless "Daring jumping spider," Phidippus audax, which is commonly found all over the United States. This small spider is black and furry with a couple white spots on its back. Four of it's anterior eyes are very large and you should be able to see them without a magnifying glass. The spider also has emerald green pedipalps. Without a location it's very hard to tell exactly what it could be. If the spider is not furry at all, I suggest staying away from it if you live in a tropical area as it could be poisonous.
a type of jumping spider?
It sounds like you may have encountered a jumping spider. Jumping spiders are known for their small size and ability to leap short distances. Their distinctive markings can include white spots on a black body. They are harmless to humans and are considered beneficial because they help control insect populations.
black hairy with white dots on its back
When encountering a black and white hairy spider, it is important to avoid touching or provoking it. Keep a safe distance and do not try to handle the spider. If you suspect it may be venomous, contact a professional pest control service for removal.
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the black widow heh heh heh.....
A brown spider with white spots typically has a brown body with distinct white markings or spots on its abdomen. These white spots can vary in size and pattern, but they are a key characteristic that sets this type of spider apart from others.
The distinguishing features of a brown spider with white spots on its back are its brown coloration and the presence of white spots on its back.
The spider you are describing sounds like a daring jumping spider (Phidippus audax). They are known for their black and furry bodies with white spots on their backs and white stripes on their legs. Daring jumping spiders are commonly found throughout North America.
The spider you are describing could possibly be the gray cross spider (Larinioides sclopetarius). This spider is commonly found in wooded areas in Michigan and has a white spot on its back. It is known for its hairy body and is relatively harmless to humans.
a redback spider
There are many different kinds of spiders that are brown with white spots. To properly identify them, it helps to determine if the spots are in any particular pattern, the overall body shape of the spider, and where it is living. Such a spider may be a sic-spotted fishing spider, a bold jumping spider, or an orb-weaving garden spider.