Status: Not Listed
Yellow garden spiders are large, orb-weaving arachnids, meaning they spin a circular web. Most spiders have two claws on each foot, but orb weavers have an additional claw to help them spin their complex webs. In females, the top side of the abdomen is black with symmetrical patches of bright yellow. The legs are reddish brown at the base and black toward the tips. Males are less striking in appearance—they are smaller with brownish legs and less yellow coloration on their abdomens. Females average 0.75 to 1.1 inches (19 to 28 millimeters) in body length, which is up to three times larger than the males.
Yellow garden spiders can be found throughout the continental United States and Canada, Mexico, and Central America. They spin webs in sunny areas with plants on which they can anchor the webs. They may also be seen in backyard gardens.
These spiders produce venom that is harmless to humans, but helps to immobilize prey like flies, bees, and other flying insects that are caught in the web. The web of the garden spider contains a highly visible zigzagging X-shaped pattern called a stabilimentum. The exact function of the stabilimentum is unknown, but its purpose may be to alert birds to the presence of the web so that they don’t fly through and destroy it by mistake. The spider may eat and respin its web each night.
A male seeks out a female and courts her by plucking at her web. After mating, the female deposits one or multiple egg sacs on her web. Offspring hatch in late summer or autumn. If they’re in an area with a cold winter, the young spiders may remain in the egg sac in a dormant state and emerge in the spring. Egg cases are heavily parasitized by wasps and flies. On average, the garden spider lives for about one year. Females usually die in the first hard frost after mating. If temperatures prevent this, females may live several years, but males usually die after mating.
Garden spider populations are stable. They are common and widespread.
Sometimes the garden spider connects itself to a web by a thread of silk and hides in the underbrush. When an insect gets caught, the spider can feel the vibrations of the web.
Animal Diversity Web, University of Michigan Museum of Zoology
Encyclopedia of Life
Wildlife have unique and fascinating talents. Can you guess their extraordinary skills?Take the Quiz
Conservation success depends on many advocates—and contemporary artists want us all engaged.Read More
Discover six ways to tell the difference between these three species.Read More
Place your order today for the themed box that delivers everything you need to create family memories while discovering nature and wildlife.Learn More
The National Wildlife® Photo Contest celebrates the power of photography to advance conservation and connect people with wildlife and the outdoors.