Cellar spiders, often found in basements, attics, and other dark corners, are commonly mistaken for being dangerous due to their long legs and quick movements. However, despite their eerie appearance, they are mostly harmless to humans.
A widespread myth suggests that their venom is highly potent, but this is not supported by scientific evidence. In this article, we’ll explore the truth about cellar spider bites, their venom, and their overall impact on humans.
Do Cellar Spiders Bite?
Cellar spiders are not aggressive and rarely bite humans. They prefer to stay undisturbed in their webs, catching small insects and even other spiders. Unlike some species that actively seek out prey, cellar spiders wait patiently for insects to become trapped in their web. When disturbed, their first instinct is to shake their web vigorously or retreat rather than bite.
Can a Cellar Spider Bite You?
While it is technically possible for a cellar spider to bite, it is highly unlikely. Their fangs are very small and weak, making it difficult for them to pierce human skin. The only situation where a bite might occur is if the spider is handled roughly or trapped against the skin, but even in such cases, reports of actual bites are exceedingly rare.
Are Cellar Spiders Venomous?
Like all true spiders, cellar spiders do have venom, but it is designed for subduing small insects rather than harming humans. Their venom works effectively on their prey, such as flies, mosquitoes, and other household pests, but it has no significant effect on humans. Comparisons with other spider venoms have shown that cellar spider venom lacks the potency to cause any serious reactions.
Symptoms of a Cellar Spider Bite
If a cellar spider were to bite, the symptoms would likely be mild or nonexistent. Some possible effects might include:
- A slight redness at the bite site (rare)
- Minimal to no pain
- No severe swelling or itching
When compared to more dangerous spiders such as the black widow or brown recluse, cellar spider bites pose no medical threat.
Are Cellar Spider Bites Dangerous?
No, cellar spider bites are not dangerous. There is no evidence to suggest that their venom can cause harm to humans. Many people assume that their long legs indicate a highly venomous nature, but this is a common misconception. Unlike truly venomous spiders such as black widows or brown recluses, cellar spiders pose zero risk to human health.
Long-Bodied and Marbled Cellar Spider Bites
There are different species of cellar spiders, including the long-bodied cellar spider (Pholcus phalangioides) and the marbled cellar spider. However, the venom and behavior of these species remain largely the same:
- Both species are non-aggressive.
- Both have weak fangs that can hardly penetrate human skin.
- Their venom is not harmful to humans.
Cellar Spider Venom vs. Other Spiders
Cellar spider venom is often compared to that of more infamous spiders, but it is nowhere near as dangerous. Here’s how it stacks up:
- Black Widow: Neurotoxic venom that affects the nervous system.
- Brown Recluse: Necrotic venom that can cause tissue damage.
- Cellar Spider: Weak venom that only affects small insects and has no harmful effects on humans.
Cellar Spider Fangs and Biting Mechanism
Cellar spiders belong to the Pholcidae family and have very small fangs known as uncate fangs. These fangs are short and weak, making it difficult for the spider to bite through human skin. Their primary method of subduing prey involves wrapping it in silk rather than relying on venom.
Do Cellar Spiders Have Any Benefits?
Yes! Cellar spiders are beneficial creatures to have around the home. Here’s why:
- They help control insect populations by preying on flies, mosquitoes, and other pests.
- They even eat other spiders, including more harmful species like black widows.
- They are harmless to humans, making them a great natural pest control option.
Cellar Spider Bite Pictures
Since cellar spider bites are rare and have little to no visible symptoms, there are very few documented cases of their bites. If you find a red mark on your skin, it is more likely from another insect or spider rather than a cellar spider. Always compare bite marks carefully and consult a medical professional if needed.
Conclusion
In summary, cellar spiders are harmless to humans. While they do have venom, it is not strong enough to harm people, and their fangs are too weak to bite through human skin. Despite the myths, they are not dangerous and actually serve a beneficial role in controlling insect populations. If you encounter one in your home, there’s no need to fear—these long-legged arachnids are simply doing their job as nature’s pest controllers.
