Triangle Weaver Spider Web
Scientific Name: Hyptiotes cavatus
Category: other
Brief Description
An unusual, non-circular spider web shaped like a flat triangular sector, consisting of four radial lines and several cross-threads.
Characteristics
The web is a triangular section of an orb web, typically having four radii leading to a common single anchor line. The spider often sits on the anchor line, holding the web taut.
Habitat
Deciduous and coniferous forests, often found on dead lower branches of trees and shrubs.
When to Find It
Late summer to autumn is the most common time to find mature webs.
Conservation Status
N/A
Ecological Role
Highly specialized predator of small flying insects, contributing to local insect population control.
Easily Confused With
Orb weaver webs (Araneidae) which are circular; Triangle weavers have no 'hub' and a distinct geometric sector shape.
Observation Tips
Look for these on dead twigs in the understory of woods. They are most visible when covered in morning dew or backlit by the sun.
Interesting Facts
The spider uses its own body as a bridge in the anchor line to keep the web under tension; when prey hits the web, the spider releases the line, causing the web to collapse around the insect like a net.
User Notes
In a tree by my deck