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Broad-Faced Sac Spider

Broad-Faced Sac Spider

Trachelas tranquillus

A species of Trachelas

The broad-Faced Sac Spider likes to make silken hideout sacs in rolled-up leaves and under rocks, but it will find its way indoors during the mating season. This spider does bite, with the effects being similar to that of a wasp or bee sting. Those with a sensitivity to arthropod venom should be careful around the broad-Faced Sac Spider.

Toxic to Animals
Toxic to Animals
Bite Humans
Bite Humans
General Info About Broad-Faced Sac Spider
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Attributes of Broad-Faced Sac Spider
Colors
Brown
Red
Gray
Orange
Habitat
under leaf litter; under stone; under board; foliage; bases of plant; inside rolled leave
Defensive attack
Not reported
Venomous
The Broad-Faced Sac Spider can induce toxic reactions varying in severity. Nevertheless, these toxins primarily target their prey and predators and are usually not fatal to humans.
Non-poisonous
Not reported
Borer
Not reported
Pollinator
Not reported
Pest-Eating Predatory
Not reported
Phytophagous
Not reported
Predatory
The Broad-Faced Sac Spider typically preys on other arthropods and does not directly affect plants.
Biting animal or pet
Yes
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Distribution Area of Broad-Faced Sac Spider
England, Canada, Georgia, Alabama, Kansas, Minnesota
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Predators of Broad-Faced Sac Spider Larvae
Ants, wasps, birds, larger spiders
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Predators of Adult Broad-Faced Sac Spider
Birds, larger spiders, mammals, reptiles
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Scientific Classification of Broad-Faced Sac Spider
Tips for Finding Broad-Faced Sac Spider
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Youth Habitat of Broad-Faced Sac Spider
Forests and Woodlands, Urban and Suburban Areas, Grasslands and Prairies
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When is the Best Time to Observe Broad-Faced Sac Spider
The best time to find broad-Faced Sac Spider is usually at night or during twilight hours, as spiders tend to be nocturnal and more active during these times.
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What is the Best Weather to Observe Broad-Faced Sac Spider
Mild, damp weather might increase the likelihood of encountering broad-Faced Sac Spider, as these conditions are often favorable for the insects they prey on.
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How and Where Can You Find Broad-Faced Sac Spider at Different Life Stages
Juvenile Broad-Faced Sac Spider juveniles are often found in the same habitats as adults but may be smaller and less conspicuous. Look for them in sheltered corners, under eaves, or in the crevices of bark.
Adult Broad-Faced Sac Spider adults can be found by searching webs in corners of buildings, under stones, or within cluttered areas in garages or sheds. At night, using a flashlight might cause their eyes to reflect light, making them easier to spot.
Are Broad-Faced Sac Spider harmful?
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Are Broad-Faced Sac Spider harmful to humans?

Trachelid spiders usually do not bite, and may only bite when they feel coerced. Their toxicity is limited, and like most ordinary spiders, people who are bitten do not have to worry about their lives. After being bitten, the wound will be red, swollen and itchy, and the pain is comparable to that of a bee or wasp sting.
Harmful Effects of Broad-Faced Sac Spider
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Toxic to Animals
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Bite Humans
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Toxic to Animals

Broad-Faced Sac Spider typically utilizes its fangs to deliver a mild toxin when it bites. This method of venom delivery can affect various animals like humans, dogs, and cats, usually resulting in minimal discomfort rather than severe reactions or systemic poisoning. The toxin produced by adult broad-Faced Sac Spider primarily serves a defensive purpose rather than for prey capture, and while it may cause localized pain or swelling in mammals, in other creatures, the impact could vary but remains generally non-lethal.

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Bite Humans

Broad-Faced Sac Spider generally avoids humans, with bites being rare and mostly occurring in self-defense. When bites do happen, the spider employs its fangs to puncture the skin. Such incidents are primarily a response to perceived threats, often during inadvertent contact. The bite typically results in mild and localized symptoms.

More Effects of Broad-Faced Sac Spider

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