Despite their name, yellow sac spiders (Cheiracanthium inclusum) are not always yellow. They can be yellow-green or even light brown. These spiders are native to Europe, but they can also be found in other parts of the world.
Steps
Step 1. Learn to recognize a yellow sac spider
Here are some typical features:
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Physical characteristics:
6-9.5 mm long with an orange-brown stripe above the abdomen.
- Poisonous: Yes.
- He lives in: olarctic region, Africa and Australia.
- Diet: these are nocturnal spiders that go hunting after dark. They feed on other spiders, insects and their eggs.
Method 1 of 3: Identify a Spider from the Yellow Sack
There is little difference between male and female yellow sac spiders. The male is usually thinner and may have a slightly larger leg span than the female.
Step 1. Look at the legs
The first pair of legs is longer than the fourth pair.
Step 2. Observe the eyes
The eight eyes of the yellow sac spider are similar in size and are arranged in two horizontal rows.
Step 3. Examine the parts of the house where the walls meet the ceiling
These spiders often make their sacks at the connection points between the ceiling and the walls and hide inside them during the day. If you touch the bag, the spider will fall to the ground.
Step 4. Notice the feet, which are black (actually covered in tiny black fuzz)
If your walls and ceiling are light colored, you will easily notice their black feet.
Method 2 of 3: Recognizing the Spider Habitats from the Yellow Sack
These spiders create sacks instead of the classic cobwebs. They prefer to live and hunt outdoors, but when the weather gets colder they move indoors, where they will build their bags in a corner, usually near the ceiling.
Step 1. Look for yellow sack spiders in other places such as:
- Garden sheds.
- Garage.
- Foundation of the house.
- Behind the frames of the paintings.
- Window sills.
- Skirting.
Method 3 of 3: Curing a Bite
The fangs of a yellow sac spider are powerful and can penetrate human skin. Its light venom produces neurotoxic effects, and the bite itself can be quite painful.
Step 1. Notice if you or the person bitten develop redness, itching, and swelling in the area of the bite
Remember that all of these symptoms go away within 72 hours, so identifying them quickly is important.
Step 2. When you've identified a bite as coming from a yellow-sacked spider, call an ambulance right away
Advice
- Most people get bitten by yellow sack spiders when gardening or other outdoor activities.
- Since yellow sack spiders hunt at night, it's a good idea to keep the bed away from the walls to reduce the likelihood of being bitten while you sleep.
- Yellow sac spiders generally live 1-3 years, and are the prey of spiders, wasps, birds, and lizards.
- You can limit the number of yellow-sacked spiders entering your home by installing very tight nets on doors and windows. It is also helpful to seal all openings, cracks and crevices from which spiders could enter.
