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Arrowhead (Verrucosa arenata)

The arrowhead spiders are orb-weaving species mostly indigenous to the New World. The first half of their genus name (Verrucosa) translates to warty while arenata means sand in Latin.

Scientific Classification

Arrowhead Spider

Physical Description and Identification

Adults

Size: The females are approximately 1/4th inch while their male counterparts are smaller.

Color: Reddish brown body,with a triangular pattern of white,yellow and pink on the abdomen (mostly seen in females).

Other Characteristic Features: Its body has a zig-zag pattern, helping it to appear bigger than its actual size to the predators. Another of its trademark features, seen only in the female spider is the pointed and triangular abdomen in the shape of an arrow, which is perhaps the reason behind its name. They are even characterized by spines to the front as well as to each of its sides.

Arrowhead Orb Weaver Spider

Eggs

Wrapped in a case of silk, the eggs are small and round.

Spiderlings

There are many in number, hatching mostly in spring and within a short span they get detached from their mother.

The Web

Like most orb weaving spiders, their webs are also flat and spiral-shaped. They weave a new web on a daily basis, with the old one being removed post sunrise.

Arrowhead Spider Web

Does the Arrowhead Spider Bite and is it Poisonous

They are not harmful and their bite does not cause harm to humans. However, redness, swelling or allergic reactions could be encountered by some.

Triangle Orb Weaver

Quick Facts

Other names Arrowhead orb weaver, Triangle orb weaver
Lifespan Females live for a year while males have a shorter span
Distribution Northern and Southern America, as well as parts of Greater Antilles.
Habitat Seen mostly in spring and summer in marshy lands, gardens, shrubby areas, wetlands, and wooded thickets
Predators Wasps and species of birds
Diet Different varieties of insects and small frogs
Arrowhead Orb Weaver

Did You Know

  • The two hard horns located on its abdomen is its only way of defending against its predators.
  • Its zig zag pattern as mentioned above makes it resemble a flower, hence attracting pollinators and helping it to catch preys with ease.

Image Credits: Bugguide.net, Static.inaturalist.org, C1.staticflickr.com, 2.bp.blogspot.com, lh3.googleusercontent.com

The arrowhead spiders are orb-weaving species mostly indigenous to the New World. The first half of their genus name (Verrucosa) translates to warty while arenata means sand in Latin.

Arrowhead Spider

Physical Description and Identification

Adults

Size: The females are approximately 1/4th inch while their male counterparts are smaller.

Color: Reddish brown body,with a triangular pattern of white,yellow and pink on the abdomen (mostly seen in females).

Other Characteristic Features: Its body has a zig-zag pattern, helping it to appear bigger than its actual size to the predators. Another of its trademark features, seen only in the female spider is the pointed and triangular abdomen in the shape of an arrow, which is perhaps the reason behind its name. They are even characterized by spines to the front as well as to each of its sides.

Arrowhead Orb Weaver Spider

Eggs

Wrapped in a case of silk, the eggs are small and round.

Spiderlings

There are many in number, hatching mostly in spring and within a short span they get detached from their mother.

The Web

Like most orb weaving spiders, their webs are also flat and spiral-shaped. They weave a new web on a daily basis, with the old one being removed post sunrise.

Arrowhead Spider Web

Does the Arrowhead Spider Bite and is it Poisonous

They are not harmful and their bite does not cause harm to humans. However, redness, swelling or allergic reactions could be encountered by some.

Triangle Orb Weaver

Quick Facts

Other names Arrowhead orb weaver, Triangle orb weaver
Lifespan Females live for a year while males have a shorter span
Distribution Northern and Southern America, as well as parts of Greater Antilles.
Habitat Seen mostly in spring and summer in marshy lands, gardens, shrubby areas, wetlands, and wooded thickets
Predators Wasps and species of birds
Diet Different varieties of insects and small frogs
Arrowhead Orb Weaver

Did You Know

  • The two hard horns located on its abdomen is its only way of defending against its predators.
  • Its zig zag pattern as mentioned above makes it resemble a flower, hence attracting pollinators and helping it to catch preys with ease.

Image Credits: Bugguide.net, Static.inaturalist.org, C1.staticflickr.com, 2.bp.blogspot.com, lh3.googleusercontent.com

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