Orb Weaver Spider: Identification, Habitat & Prevention

What Does an Orb Weaver Spider Look Like?

Here are the four steps to identify orb weaver spiders.

1. Size: The body length is from 6 mm to 25 mm, depending on the specific species. For example, Araneus quadratus females are about 17 mm in length, and males are about half that length.
2. Color: Orb weavers are colorful, but they come in a variety of colors, such as brown, orange, yellow, red, gray, and black. Some species are patterned on their abdomen with bold colors, like rusty red, yellow orange spots, says some species, like the garden orb weaver.
3. Markings: Orb weavers often show stripes, spots, or intricate patterns on their abdomens. The “four-spot orb-weaver” (Araneus quadratus) looks particularly distinctive with its four white blotches here.
4. Physical traits: These spiders have shorter front legs and long rear legs, a posture that allows web navigation and also the positioning of the body within the orb webs.

Where Do Orb Weaver Spiders Live?

Here are the three habitats of orb weaver spiders.

1. Habitat preferences: Orb weavers prefer gardens, forests, and grasslands. They also remain close to outdoor lights and buildings, since insects congregate at night, an easy source of food.
2. Web locations: They nest in webs between branches, fences, and corners of buildings. They choose the areas where flying insects are moving and prey capture is more effective.
3. Climate detail: Orb weavers occur throughout the world in temperate to tropical regions. Species such as Araneus diadematus are common in Eurasia and North America, and tropical orb weavers occupy humid, warm areas in Asia, Africa, and South America.

What is the Life Cycle of a Weaver Spider?

Here is the life cycle of a weaver spider:

1. Egg: The females lay hundreds of eggs in silken sacs and conceal them in crevices or dense shrubbery to protect them against predators and inclement weather.
2. Spiderling: Spiders give birth to tiny spiderlings in spring that spread through ballooning, being carried in the air on a thread of silk to new places where they can find less competition over the food resource.
3. Maturation: The young spiders develop through molting, discarding their external skeleton several times until they assume their full adult body size and weave stronger, more intricate webs.
4. Lifespan: The majority of orb-weaver species survive up to a year, but a few survive winter in their egg sacs and emerge when conditions are more favorable in spring.

What is the Behavior of Weaver Spiders?

Here are the three behaviors of orb weaver spiders:

1. Web-Building: Orb Weaver Spiders build extensive circular webs made of sticky silk to capture insects in flight. To remain effective, they rebuild these webs on a daily basis.
2. Nocturnal Activity: They hide by day, in leaves or corners, and at night, they are busy spinning and mending webs.
3. Feeding Habits: These insects consume flies, gnats, moths, and beetles, but first, they surround the insect with silk and promptly eat it.

How to Prevent Orb Weaver Spider Encounters

Here are the eight ways to prevent or reduce weaver spider encounters.

1. Limit Outdoor Lighting: Restricted outdoor lighting keeps flying insects out, cutting food supplies to the spiders. Low-intensity or yellow-colored bulbs discourage bugs.
2. Trim Vegetation: Cutting trees and shrubs around windows or doors eliminates web-building areas near homes.
3. Remove Old Webs: Eliminating spider webs in porches, eaves, and fences prevents spiders in the same places next time.
4. Seal Entry Points: Caulking windows, doorways, vents, and any gaps gives spiders no chance of finding a home indoors.
5. Reduce Insect Populations: By applying insect screens and bug repellent light, the extent of the flying pests that spiders feed on is reduced.
6. Inspect Outdoor Furniture: Looking at patio furniture, grills, and playsets helps to prevent contact with concealed spiders.
7. Use Motion-Activated Lights: Installing the motion-detecting lights eliminates constant illumination that attracts insects.
8. Install Door Sweeps: Installing door sweeps prevents crawlers under exterior doors.

If you’re seeing spiders, schedule a same-day inspection now!

Are Orb Weaver Spiders Dangerous?

The orb weaver spiders possess venom, and it remains mild and is only able to paralyze small insects trapped in the web. They possess tiny fangs that deliver very little of their venom in larger animals.

There are hardly any issues with human interaction. Bites occur when the spiders are trapped. The reaction appears in the form of slight redness or itching in less than 2 out of 100 cases.

Their size and their round webs tend to produce fear, but the spiders remain harmless. They are outdoor hunters who keep the insect population down not a human threat.