A red and white spider with horns is likely to be either a spiny-backed orb weaver or an arrowhead orb weaver. Both spiders are similar in size and behavior, but they look very different. They also tend to live in shrubs or low trees, especially near water.Know More
Both types of spiders spin webs to catch their prey. However, the spiny-backed orb weaver adds tufts of silk to the web that serve as warnings to birds to prevent damage to the web. Arrowhead orb weavers spin a standard web.
The spiny-backed orb weaver is wider than it is long, ranging from 0.4 to 0.5 inches in width, but only 0.2 inches to 0.35 inches in length. The arrowhead gets its name from its triangular shape. They are approximately 0.37 inches long. The spiny-backed orb weaver has six red spines, or horns, around the perimeter of its abdomen. The arrowhead has two red spikes protruding from the back of the abdomen.
Both spiders come in a range of colors. The spiny-backed orb weaver typically has a white abdomen with black dots and red spines, while the arrowhead has a white-yellow abdomen with black spots. The horns are red at the roots and black at the tips.
Many black spiders exhibit white markings, such as the white-spotted jumping spider, the gray wall jumper, grass spiders, the zebra jumper and the false black widow. Others can be researched using resources like online arachnid identification sites.Full Answer >
According to the College of Agricultural Sciences at Penn State, brown spiders with white spots on their underbellies are generally identified as European garden spiders, also known as cross weavers. These spiders are usually found in Washington and Oregon and from Pennsylvania northward through New England and parts of Canada.Full Answer >
A jumping spider is black, and the spot on its back is often white. However, some of these spiders have an orange mark instead of a white one. Jumping spiders frequently have black-and-white striping on their legs that helps camouflage them against trees.Full Answer >
Identify a brown recluse spider bite by observing the spider, determining the pain level associated with the bite, looking at the appearance of the lesion, watching for changes, and then checking the wound over the next 48 hours. See a health care provider immediately upon finding the bite.Full Answer >