A baby black widow has a white abdomen with black spots in addition to brown legs and a tan cephalothorax, the part of a spider to which the legs attach. This coloration is dramatically different from the well-known female adults, making the young more difficult to identify.
The colors and patterns of the adult females begin to change with each moult, when the spiders outgrow their current exoskeletons. Eventually, females turn black, and the area where the red hourglass figure appears on the underside of the abdomen changes from white to yellow to orange and finally red. Males, though, tend to keep the coloration with which they are born.Learn More
The biggest black widow spiders are females, which grow at least twice as big as the males. Female black widows can grow up to 1.5 inches long, including the legs.Full Answer >
The white-spotted, bold or daring jumping spider is fuzzy and black with white spots on its back and white stripes on its legs. Occasionally the spots on its back, known as the abdomen, are orange, reddish or gray. Usually the spot in the center of the abdomen is largest.Full Answer >
The brown recluse spider can be identified by its half-inch-long body that is light brown and has a darker brown, fiddle-shaped mark on the upper cephalothorax (the part of its body between its head and its abdomen). It is also unusual in that it has six eyes instead of the usual eight found in most other spiders.Full Answer >
The spinybacked orbweaver, commonly called the crab spider in Florida, is part of a pantropical genus that can be found in trees and shrubs from the southern United States to northern Argentina. The female can be identified by the six spines protruding from the dorsal side of the abdomen.Full Answer >