Home / Orb Weavers / Shamrock Orb Weaver (Araneus trifolium)

Shamrock Orb Weaver (Araneus trifolium)

The shamrock orb weaver is a part of Aaneidae family. Just like its name suggests, it belongs to the orb weaver’s group.

Shamrock Orb Weaver

Scientific Classification

Physical Description and Identification

Adults

Size: Females are 0.9 in (2.5 cm) and males are typically smaller.

Color: The color varies from olive green to purple, from bright red to yellow.

Other Characteristic Features: Legs are black and white and sometimes there are white speckles on the abdomen.

Shamrock Orb Weaver Size

Eggs

Eggs are laid by female spiders inside a silk sac in autumn.

Spiderlings

After overwintering, the spiderlings hatch during spring and start creating webs for themselves.

The Web

Female spiders make webs hanging from vertical stems. Inside the webs, on either sides, there could be some ‘bowers’ or ‘retreats’ located 1 meter off the ground. The spiders usually sit in the middle but when they hide in their retreats, they stay connected with the web through a single strand so that if any insects come and sit on the web, the spiders will understand through the vibration.

These webs are built every morning and then eaten in the following day by the spiders before making another one.

Shamrock Orb Weaver Web

Are Shamrock Orb Weaver Spider Poisonous

They have a little bit of poison, but not harmful enough for humans.

Quick Facts

Other Names Shamrock Weavers
Lifespan 1 year
Distribution USA and Canada
Habitat Grassland, gardens, shrubs, and forests
Web Type Orb Web
Diet Insects
Shamrock Orb Weaver Spider

Did You Know

They are mostly found in humid areas, because they can drink moistures gathered in their webs.

Image Credits: Bugguide.net, Projectnoah.org, Spiderzrule.com, Onnaturemagazine.com

The shamrock orb weaver is a part of Aaneidae family. Just like its name suggests, it belongs to the orb weaver’s group.

Shamrock Orb Weaver

Physical Description and Identification

Adults

Size: Females are 0.9 in (2.5 cm) and males are typically smaller.

Color: The color varies from olive green to purple, from bright red to yellow.

Other Characteristic Features: Legs are black and white and sometimes there are white speckles on the abdomen.

Shamrock Orb Weaver Size

Eggs

Eggs are laid by female spiders inside a silk sac in autumn.

Spiderlings

After overwintering, the spiderlings hatch during spring and start creating webs for themselves.

The Web

Female spiders make webs hanging from vertical stems. Inside the webs, on either sides, there could be some ‘bowers’ or ‘retreats’ located 1 meter off the ground. The spiders usually sit in the middle but when they hide in their retreats, they stay connected with the web through a single strand so that if any insects come and sit on the web, the spiders will understand through the vibration.

These webs are built every morning and then eaten in the following day by the spiders before making another one.

Shamrock Orb Weaver Web

Are Shamrock Orb Weaver Spider Poisonous

They have a little bit of poison, but not harmful enough for humans.

Quick Facts

Other Names Shamrock Weavers
Lifespan 1 year
Distribution USA and Canada
Habitat Grassland, gardens, shrubs, and forests
Web Type Orb Web
Diet Insects
Shamrock Orb Weaver Spider

Did You Know

They are mostly found in humid areas, because they can drink moistures gathered in their webs.

Image Credits: Bugguide.net, Projectnoah.org, Spiderzrule.com, Onnaturemagazine.com

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