This is probably a Red-Backed Jumping Spider. The male has a black body with a bright red abdomen. The female is the same, but the red abdomen has a black stripe. They're found all over the United States. If you want pictures of them, you can find them online at http://kaweahoaks.com/html/spi_phidippus_johnsoni.html.
I think its a Red Back spider cause i have seen one
# i don,t know i just fond a red spider with a black butt and black tips on feet and black fangs let me know if you find out
not a house spider
A North American Johnson jumping spider
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
a redback spider
that kind of spider thats what
White tip spider
I believe it is a type of jeweled spider.
A black widow is a spider with a red mark on its 'back'
a kaboochibooch spider
Black and red spider
It is the most deadlyest spider apart from the red back...it is its cousin...the crizone spider
Red backed jumping spider
it could be a Red-Backed Jumping Spider or black widow.Black widows are dangerious though,so ive only seen pictures,but im sure that's what they look like
black widow spider
A white tail spider fits the discription. Where do you live?
A jumping spider has a white dot on its back.
what kind of bug is little black with a red butt and red on tips of legs?
A Brown Recluse
Black Widow Spider
That spider is a window spider.
Its piosonous alright, but I dont know what its called.