The Southern House Spider lives in many parts of America, from the north to the south. It’s quite a big spider! Interestingly, people often confuse the male Southern House Spider with another spider called the brown recluse because they look a lot alike.
About 200 eggs are laid at a time and they are approximately 15mm in size, loosely covered in a ball of silk, guarded closely by the mother in the burrow she dwells in.
The spiderlings of this species are sociable, exhibiting traits like sibling recognition, as well as cooperating with others while capturing prey. They always remain in clusters be it after feeding or when dispersing from the mother spider on maturation.
The webs of the Southern house spider are flat and tangled, having a woolly texture. Specialized webs are mostly spun by females as well as juveniles, generally spotted on bridges, barns, and houses and occasionally under the bark of a tree.
People often take the Southern house spider, particularly the males, for a brown recluse because of their similarity in color and shape. However, the Southern House Spider is comparatively bigger in size than the Brown Recluse and also does not have the prominent violin mark as seen in the latter.
Southern House Spiders do have venom, but it’s not considered harmful to humans.
Yes, Southern House Spiders can bite, but they usually don’t unless they feel threatened. The bite might be a little painful but is generally not dangerous. Between the two sexes, the males are said to be the aggressive lot, though they do not bite right away unless bothered or trapped.
The Southern House Spider is an intriguing arachnid that plays a significant role in controlling the population of insects, thus maintaining a balanced ecosystem. These spiders exhibit nocturnal hunting behaviors, often waiting for prey within their webs, which allows them to manage the numbers of various household pests effectively.
Natural Predators: Despite their formidable appearance, Southern House Spiders fall prey to birds, reptiles, and larger species of spiders. The size and coloration of these spiders aid in camouflage, providing some defense against these natural threats.
Prey-Predator Dynamics: Equipped with potent venom, Southern House Spiders immobilize their prey, which includes flies, beetles, and cockroaches. This dynamic not only benefits the spiders in obtaining nourishment but also aids in keeping a check on pest populations that could otherwise become nuisances in human dwellings.
Relationship with Humans: Generally, Southern House Spiders are harmless to humans. Their presence in and around homes can be beneficial as they feed on common household insects. While their bite is not typically dangerous, it is advisable to avoid handling them to prevent any unwanted bites.
| Lifespan | Females live for approximately eight years; males have a much shorter life expectancy |
| Distribution | The southern part of North America, all over Central America, and Southern American countries like Uruguay and Brazil |
| Habitat | The male spiders are found in buildings on window sills, and shutters. The females are spotted under the bark of a tree as well as near bridges, houses, barns, and other human-made structures, where they spin their webs. |
| Diet | Small insects like horseflies, house flies, cockroaches, and beetles. |
In conclusion, the Southern House Spider serves as a natural pest control agent.
Frequently Asked Questions
Dr. James Watuwa on January 17, 2019.
Spider Team
© 2026 (Spider Identifications). All rights reserved. Reproduction in whole or in part without permission is prohibited.
Follow us on: 
