Guardian Nature School Team Contact Blog Project Noah Facebook Project Noah Twitter

A global community of nature enthusiasts
photographing and learning about wildlife

Join Project Noah!
nature school apple icon

Project Noah Nature School visit nature school

Arrowhead Spider

Verrucosa arenata

Description:

The arrowhead spider is a harmless species of spider to humans. It has legs less than 1 inch long, with an arrow like abdomen (narrow in front and ending in two large spreading spines) that has a thin membrane to support two hardened horns, which are its only defense against predators. The zig-zag pattern on the arrowhead spider is used to make it appear larger than it actually is to predators. However, it can also be used to attract would-be pollinators that believe the pattern is a small flower, thus helping the spider catch its prey. The spider can be found throughout the spring, summer, and fall lurking in low shrubs located around 2 to 3 feet above the ground in wooded thickets, wetlands, gardens and marsh areas. It tends to stay near the center of its web, in wait for an unsuspecting bug to fly into it. The female arrowhead spider is around ¼ inch in size, while the males are even smaller. The spider has a pair of small spines in the front, and another spine closer to the center on each side. The head and thorax can be either light brown or yellowish brown with white edges. The abdomen is white or bright yellow spotted with black above and a little bit darker below with yellow spots and bands of black. The spines are black on the tip and red at the base. The legs are the same color as the head and thorax.

Habitat:

Found him on the door to our storage shed.

1 Species ID Suggestions



Sign in to suggest organism ID

5 Comments

SarahWhitt
SarahWhitt 3 years ago

Thank you, Jim! :)

Jim Nelson
Jim Nelson 3 years ago

Well documented and interesting spotting, Sarah.

SarahWhitt
SarahWhitt 3 years ago

Thank you for the ID, Machi!! ;)

SarahWhitt
SarahWhitt 3 years ago

Thank you, Larry! I thought so too! :)

LarryGraziano
LarryGraziano 3 years ago

Spectacular!

SarahWhitt
Spotted by
SarahWhitt

Ohio, USA

Spotted on Sep 16, 2017
Submitted on Sep 16, 2017

Related Spottings

Verrucosa spider Arrowhead Spider Arrowhead Spider, female Arrowhead orb weaver

Nearby Spottings

Sweet Autumn Clematis Spotting Short-winged Meadow Katydid Eastern Tiger Swallowtail
Noah Guardians
Noah Sponsors

Join the Project Noah Team Join Project Noah Team