Hobo Spider
The Hobo Spider, scientifically termed Eratigena agrestis, is a common fixture in the Pacific Northwest of the United States. This species is often mistaken for other spiders due to its brown coloration and lack of distinctive markings. They are typically ground-dwelling, constructing funnel-shaped webs in low-lying vegetation or near building foundations.
The debate regarding the Hobo Spider’s bite has long been a subject of contention. Some believe its bite can lead to necrotic lesions similar to those of the Brown Recluse, while others assert that its venom is not of significant concern to humans. Nevertheless, if bitten, it’s advised to keep the area clean and watch for any adverse reactions. If any alarming symptoms manifest, like blistering or a spreading rash, medical consultation is recommended.
Funnel-Web Spiders
Hailing from Australia, the Funnel-Web Spider is considered one of the world’s most venomous spiders. These spiders are easily recognizable by their shiny, dark appearance, and their burrow-like webs, which have a unique funnel shape. They are mostly found in moist habitats, like under logs or in dense vegetation.
Funnel-Web Spider bites are known for their powerful neurotoxic venom. If bitten, symptoms can appear rapidly and may include profuse sweating, salivation, and in severe cases, respiratory distress. Due to the rapid onset and potential severity of symptoms, anyone suspecting a bite from a Funnel-Web Spider should seek emergency medical care immediately. Antivenom is available and has been effective in treating such bites.
Brown Widow Spider
Native to South Africa but now found in parts of the southern United States and other warm regions globally, the Brown Widow spider is becoming increasingly prevalent. Visually, it can be differentiated from the Black Widow by its tan-to-brown color, but it still sports the distinctive hourglass shape on its abdomen, albeit in a more orange or yellow hue. They often inhabit outdoor spaces, especially among debris or within crevices of buildings.
While the Brown Widow’s venom is believed to be more potent than that of the Black Widow, they inject a lesser amount during a bite, often making their bites less severe. Symptoms of a bite can vary, but localized pain, redness, and swelling are common. It’s crucial to treat the bite site with care and, if complications or severe symptoms arise, to seek medical advice promptly.
Yellow Sac Spider
The Yellow Sac Spider, often a pale beige or yellow, has garnered attention for its propensity to venture indoors, especially during colder months. They do not weave webs like many other spiders. Instead, they create silk “sacs” in protected areas, from which they often emerge at night to hunt. Their presence indoors is commonly noted by these sacs or by spotting them on walls or ceilings.
Though not considered deadly, a bite from the Yellow Sac Spider can be painful and may cause symptoms like redness, itching, and swelling. In some cases, the bite can develop into a small, necrotic lesion, which requires keeping the wound clean to prevent bacterial infections. As with other spider bites, monitoring the affected area for any unusual developments and consulting medical professionals if necessary is always a wise course of action.
The Bottom Line
Understanding the risks posed by certain spiders is vital for safety and peace of mind. While many spiders in the yard are harmless and even beneficial by controlling pests, being aware of the few venomous ones can make all the difference. It’s always important to approach unidentified spiders with caution, keep living spaces clean to deter unwanted arachnid guests, and seek medical attention when in doubt about a spider bite’s effects. Safety, after all, lies in knowledge and timely action.
My kids once told the neighborhood kids that their mother could kill Jason (Friday 13th) with a wooden spoon. They also thought it was hilarious that when I was watching programs about spiders I’d inevitably pull my feet up on the couch so they weren’t ‘spider level’ and yes I know those little suckers can climb anything. I won’t kill them – but I do want them out of my house.
I was bitten by a brown recluse a little over 4 years ago and almost didn’t live to tell the tale – the bite was bad, wouldn’t heal, and then it got infected causing complications that landed me in ICU for three weeks. Please continue to spread the word that brown recluse spiders are NOT found only in the southwest. My bite happened in central Pennsylvania, and the spider that bit was was tiny – less 3/8 of an inch including the legs.
I got bit by a brown recluse while stationed in Marine Corps Base Camp Lejeune in North Carolina. I got bit on the inside portion of my left leg about mid calf. While I was sleeping, I think. I never even knew that I had been bitten. At first I didn’t think it was anything serious enough to get it medically checked out. It started out as just a small red spot. But, over the course of about 2 weeks, it began to develop into an actual hole in my leg. I finally went to get it looked at and was told that it was a brown recluse bite. They did emergency surgery and cut it out of my leg. They took approximately a 2 inch round plug out of my leg. I was told that if I had waited a couple of more days I could have lost my leg from the knee down. Luckily all I have is a scar to show off. Don’t mess around with a brown recluse bite. It really can cause serious damage or it can kill you if you are bit in the wrong place. Or if you don’t get it checked out.
i have caught a large black widow that lived in my metal garbage can that was left at my shooting range, this spider was ferocious and had two hour glasses one on top and bottom, I showed this beast to my neighbors they screamed and said kill it- kill it i did the other thing and turned it loose.
I like spiders generally and am the one that try’s to catch for release those spiders that present in a room full of people. I’ve never been bitten (I use a glass and paper to catch them) but an infected bite from a brown recluse would definitely get my attention!! Fortunately those that I have moved are the harmless kind. And I don’t give them a chance to bite – thus far! I’m 74 and vacation in the woods of New Hampshire.
Iva….. If you see a Brown Recluse, I’d suggest you killing it. They prefer cool dark area’s in the house like a bedroom closet. They will crawl up into your dresser drawers and inside shoes. I have never been a victim YET but I have friends that have been bit. The wound will slowly eat away and kill your skin leaving a huge gaping hole as a reminder for the rest of your life. IT IS UGLY any way you look at it. So my advice to you would be to KILL them.
Hobo spiders will always be on my hit list. They’ve been on my hit list for decades. I rented one house one time years ago that had several Hobo spiders scattered about. The wood pile out back, the tool shed, the garage, the crawl space under the house… several areas, several spiders. I destroyed those that I found but eventually bought a house and moved out of that rental in a beach town. The only real spider bite I got was from a Brown Recluse back in the late 60’s. I was working at a gas station pumping gas in Western Washington state during a hot summer. Somehow, at that station I got nailed. I didn’t notice it until I got a festering sore on the back of my hand. It wouldn’t get any better so I went to the doc and he called it a spider bite, then said most likely a Brown Recluse after trying to treat it. It took awhile to heal but hey, I still have a scar. Those buggers are sneaky at best.