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Raft spider

Raft spider

Dolomedes fimbriatus

A species of Fishing spiders

Equipped with supreme aquatic skills, raft spider astounds with its ability to sprint across water, a talent facilitated by hydrophobic hairs on its feet. An adept ambush predator, it is known to consume aquatic prey like fish, a dietary habit unusual among its terrestrial counterparts. This unique feeding strategy is complemented by its ability to remain submerged underwater for extended periods, a trait that reinforces its status as an aquatic specialist within its realm.

Toxic to Animals
Toxic to Animals
Bite Humans
Bite Humans
General Info About Raft spider
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Attributes of Raft spider
Colors
Brown
Black
Yellow
White
Cream
Habitat
Damp area; swampy area; sphagnum bog; wet heathland; wet woodland; bog; pool; ditch; pond; slow flowing stream
Adult Food Sources
Insects, small fish, tadpoles, frogs, newts, small crustaceans
Larva Food Source
Smaller aquatic insects, tiny fish fry, water mites, mosquito larvae, daphnia
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
The Raft spider has special defensive behaviors that can trigger an allergic reaction. If there are serious reactions, seek IMMEDIATE medical attention.
Venomous
The Raft 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
Biting animal or pet
Yes
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Predators of Raft spider Larvae
Frogs and toads, birds, jumping spiders, mantises
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Predators of Adult Raft spider
Birds, larger species of spiders, wasps
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Interesting Facts About Raft spider
Raft spider can remain submerged underwater for up to 30 minutes, a behavior used as a defense mechanism against predators.
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Scientific Classification of Raft spider
Tips for Finding Raft spider
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How Can You Attract Raft spider
Since raft spider preys on insects and small aquatic organisms, live insects such as crickets or small fish might be used as bait.
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When is the Best Time to Observe Raft spider
The best time to find raft spider would be during its active periods, which are typically dusk and dawn when the air temperature is cooler.
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What is the Best Weather to Observe Raft spider
A slightly humid environment after rain, which does not disturb the water habitats of raft spider, would be ideal conditions.
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How and Where Can You Find Raft spider at Different Life Stages
Egg Raft spider females carry their egg sacs with them, hence locating mature females near water bodies can often lead to discovering the sacs, which are usually silken and spherical.
Juvenile Raft spider spiderlings disperse soon after emerging and can be found in the vegetation around water bodies. Look for them in low lying plants and grasses near the water's edge.
Juvenile raft spider can be found near the water's edge, where they hunt small insects. They can often be spotted by looking closely among leaves and rocks near or in shallow water.
Adult Adult raft spider are semi-aquatic hunters often seen on the surface of still or slow-moving water bodies, such as ponds and marshes. They can be spotted waiting for prey or moving quite quickly across the water surface.
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Harmful Effects of Raft spider
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Toxic to Animals
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Bite Humans
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Toxic to Animals

The species raft spider typically employs its venom in self-defense and to subdue prey. When this species bites, it can deliver venom through its fangs, although the effects are generally mild. While humans might experience minor discomfort or localized reactions, smaller animals such as rodents could exhibit stronger symptoms. Insects, being more acutely affected by the venom, may be paralyzed or killed, enabling raft spider to feed. Juveniles and adults alike are capable of envenomation, with their toxicity not varying significantly with age.

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Bite Humans

Raft spider is not known to commonly bite humans. When it does, it's primarily in self-defense. Biting typically occurs if they feel threatened or if they are mishandled, considering their defensive nature in adult stages. Bites can result in mild discomfort but are not generally harmful to humans.

More Effects of Raft spider

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