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Tube web spider

Tube web spider

Segestria florentina

A species of Tube web spiders, Also known as Cellar spider

The tube web spider (Segestria florentina) is otherwise known as the Tube web spider. This nickname comes from the shape of its webbing. Six web lines extending from the tube trap prey with the sticky webbing. The tube also works as a place of security. Their bites are comparable to a bee sting in pain, but have no lasting effects.

Toxic to Humans
Toxic to Humans
Toxic to Animals
Toxic to Animals
Bite Humans
Bite Humans
General Info About Tube web spider
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Attributes of Tube web spider
Colors
Brown
Black
Habitat
hole in the wall; under stone
Adult Food Sources
Insects, spiders, isopods, small lizards, occasional small mammals
Larva Food Source
Small arthropods, tiny insects, springtails, small spiders, aphids
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
The Tube web spider has special defensive behaviors that can trigger an allergic reaction. If there are serious reactions, seek IMMEDIATE medical attention.
Venomous
The Tube web 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 Tube web spider typically preys on other arthropods and does not directly affect plants.
Biting animal or pet
Yes
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Species Status of Tube web spider
It is found in Europe.
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Distribution Area of Tube web spider
European, the Mediterranean region, southern Britain, Argentina, Australia and several Atlantic islands
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Appearance of Tube web spider
Females can reach a body length of 2 cm, males up to 1.5 cm. This species is much darker than others of the same genus. While subadult spiders have a greyish opisthosoma with a marking similar to Segestria senoculata, adults are of a uniform black, sometimes with a green iridescent shine, especially on the chelicerae, which reflect with a striking green.
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How to Identify Tube web spider?

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Adult Size of Tube web spider
1.5 - 2 cm
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Predators of Tube web spider Larvae
Birds, lizards, frogs, larger spiders, insectivorous insects, mammalian insectivores
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Predators of Adult Tube web spider
Birds, reptiles, smaller mammals, larger spiders, centipedes
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Interesting Facts About Tube web spider
Unlike their more sedentary relatives, tube web spider perform a rapid, pouncing attack on prey that stray too close to their silken tunnel retreats.
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Scientific Classification of Tube web spider
Tips for Finding Tube web spider
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Youth Habitat of Tube web spider
Urban and Suburban Areas, Forests and Woodlands
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Adult Habitat of Tube web spider
Urban and Suburban Areas, Forests and Woodlands
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How Can You Attract Tube web spider
Small insects such as flies or moths that would naturally fall prey to tube web spider.
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When is the Best Time to Observe Tube web spider
Nighttime, as tube web spider is nocturnal and more active during the dark.
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What is the Best Weather to Observe Tube web spider
Mild, humid nights are most suitable, as tube web spider prefers conditions that are not too dry.
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How and Where Can You Find Tube web spider at Different Life Stages
Juvenile Tube web spider juveniles are often found near their web retreats, which are typically constructed in the corners of buildings or in crevices. Look for small webs with funnel-like shapes and gently inspect the area with a soft brush or by carefully using a stick to coax them out.
Adult Tube web spider adults can be found near their web retreats at night. To safely locate an adult tube web spider, use a flashlight and scan along walls and crevices. Their eyes may reflect light making them easier to spot. Wait quietly for them to emerge while hunting.
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Harmful Effects of Tube web spider
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Toxic to Humans
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Bite Humans
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Toxic to Humans

Tube web spider is known to possess venom that aids in subduing its prey. While this venom contains neurotoxins that can immobilize small insects, it typically has a mild effect on humans. A bite may result in localized pain, redness, and swelling. Serious complications are rare, but discomfort can persist for a few days. The species' fangs deliver venom when they feel threatened, yet the risk to humans is generally low.

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Toxic to Animals

Tube web spider possesses a venom with mild toxicity that is secreted through its fangs. While its toxicity is typically low-grade, bites can cause discomfort and localized reactions in humans, pets like cats and dogs, as well as small mammals such as rodents. Fortunately, the potential for severe consequences is limited due to the mild nature of the venom, primarily resulting in temporary pain or irritation at the site of the bite. The venom is typically deployed defensively when tube web spider is provoked, and its effects are most pronounced during the adult stage of the organism.

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Bite Humans

Tube web spider, while not commonly biting humans, may do so defensively or when provoked. Their bites, typically mild with minor symptoms, are a method of self-preservation. Humans are not prey for tube web spider, so bites are rare and usually occur only upon accidental contact.

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