Most of your in-home typical spiders are silent, non-threatening, and simply looking for their next meal or drink. There are several, however, in Iowa that can be potentially dangerous and even deadly.

Credit: Perytskyy

A list of basic spiders that you may see daily in Iowa include:

Carolina Wolf Spider

Wolf spider - female with an egg sac
Wolf spider - female with an egg sac

Common House/Barn Spider

Credit: Getty Images

Dark Fishing Spider

Cellar Spider

Spider on the green leaf.

Woodlouse Hunter Spider

Black and Yellow Garden Spider

Credit: David Hansche
Credit: David Hansche

Grass Spider

Shamrock Orb Weaver

Bold Jumping Spider

Close up beautiful spider
Credit: 4421010037
These little guys are as cute as they are scary.

While spiders may not be the most welcome of houseguests, they are very beneficial. They eat other household insects like flies and house centipedes, and can help keep your home otherwise bug-free with no chemicals. Additionally, Iowa has very few venomous species, and both tend to isolate themselves from humans. The easiest ways to relocate it safely is to sneak up on it, trap it in an upside-down glass, and slide a sturdy piece of paper over the opening. Then, just carry your spider outside and set it free to eat those peskier bugs.

Credit: Hollywood Pictures, Walt Disney Studios Motion Pictures, FilmFlex, Hollywood Pictures Home Entertainment
Credit: Hollywood Pictures, Walt Disney Studios Motion Pictures, FilmFlex, Hollywood Pictures Home Entertainment

Which brings us to or more venomous eight-legged friends. The ones that could potentially do some damage to your body and well-being.

3) Black-Footed Yellow Sac Spider

Credit: Rhys Leonard
Credit: Rhys Leonard

My house had loads of these specific spiders when we moved in and started to do some renovating. Luckily, despite being a cousin of Iowa's nastiest spider, they are not lethally venomous to humans and do not cause necrosis of flesh in the bitten area. Worst symptoms you will have pain in the area, slight swelling, and itching. Symptoms only last 7 to 10 days. These guys really only come out at night and during the day curl up in small web sacs to nap. in the corners of your ceilings and in generally hard to reach places.

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2) Black Widow Spider

Black Widow
Credit: ArmanDavtyan
Female Balck Widow Spider

Here's the most venomous spider in Iowa. Quick note only the adult females have fangs long enough to deliver venom, as males are too small to pierce our skin. Females are 6 to 19 mm long—shiny black with a distinctive red hourglass-shaped mark. Sometimes a row of red spots is visible above. They have highly toxic venom, 15 times stronger than a rattlesnake, but here's where we win; they are not aggressive. If you are bitten the venom will begin to affect your nervous system. Deaths to adults are rare, but the neurotoxin can be fatal to children left untreated. These spiders avoid people and will usually choose a dark or dimly lit dry area. Dark corners, closets, or under overhangs, and in woodpiles.

1) Brown Recluse

Brown Recluse Spider
Credit: benjaminjk
The violin feature is the giveaway when dealing with a Brown Recluse.

Many regard the Brown Recluse as "more dangerous" than the Black Widow seen above, and here is why. Not only can the Brown Recluse be difficult to categorize or identify when stumbling upon them and can be aggressive if they feel threatened. In addition, these little guys absolutely love to live indoors with us. The brown Recluse is usually brown to grey in coloring, but what gives them away is the violin shape that runs from their head (the body of the violin) down to their thorax (the neck of the violin).

They prefer dimly lit areas like basements, closets, but may even bed down in a shoe or bed. Here's where things get a little worse for us. Bites are most common when someone accidentally steps or rolls on them while sleeping. The bite is painless, with many unaware that they have been bitten until a later time.

Bites can result in lesions, nausea, fever, and wounds that are slow to heal, becoming necrotic and sometimes causing secondary infections. Necrosis (death of cells) sets in quickly, resulting in an excruciating and gruesome “flesh-rotting” wound.

attachment-Copy of American Red Cross

What are some quick tips for avoiding those creepy-crawlies?

Inside your home check for spiders in your:

  • Basements
  • Garages
  • Bathrooms
  • Cabinets
  • Window and door entryways

Spiders end up in basements. They're underground and often offer perfect living conditions. If you have a finished basement with carpet, vacuum frequently if you want to keep spiders away. If you have unfinished floors or a finished hard surface, sweeping will keep you clear of cobwebs. Seal up your garage. Use of a localized pesticide can keep your home pest free. Spiders need water too, so be spider-aware by toilets, showers, and sinks. Spiders love clutter, so don't give them places to hide, and you will be unlikely to see them.

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