Araneus cavaticus is a species of orb-weaving spider native to the eastern and central parts of North America. Commonly known as the barn spider or the yellow garden spider, it belongs to the genus Araneus in the family Araneidae.
The barn spider is known for its distinctive appearance, with a round abdomen adorned with intricate yellow and black markings. Females typically grow larger than males, reaching lengths of up to one inch, excluding their legs. They are skilled weavers, constructing large orb-shaped webs that serve as their primary means of capturing prey. These webs are typically found in secluded areas, such as barns, sheds, and gardens, where the spider can enjoy an abundant supply of insects like moths, flies, and beetles.
Araneus cavaticus has a lifespan of about one year, with females typically dying after producing a sac of eggs. They lay their eggs within a silken cocoon, which is attached near their web. After a period of incubation, spiderlings emerge and disperse, starting the cycle anew.
These spiders are generally harmless to humans, as their venom is not potent enough to cause any significant harm. In fact, they are often considered beneficial due to their role in controlling insect populations. The barn spider ranks among the most well-known and easily recognizable species of spiders in its range.
