---
title: "Triangle weaver"
description: "Hyptiotes cavatus — Insecten en spinnen. Hyptiotes cavatus, the triangle weaver, is a species of cribellate orb weaver in the family of spiders known as Uloboridae."
canonical: https://animalchecklist.com/nl/animal/triangle-weaver
last_updated: 2026-09-20
---

# Triangle weaver

> Hyptiotes cavatus — Insecten en spinnen. Hyptiotes cavatus, the triangle weaver, is a species of cribellate orb weaver in the family of spiders known as Uloboridae.

- Scientific name: *Hyptiotes cavatus*
- Category: `insects` (Insecten en spinnen)
- Habitats: unknown
- iNaturalist observations: 399
- Wikidata: [Q2489685](https://www.wikidata.org/wiki/Q2489685)
- iNaturalist taxon: [146913](https://www.inaturalist.org/taxa/146913)

## Names

- en: Triangle weaver

## Countries with the most observations

US (177), CA (3)

## Summary

Hyptiotes cavatus, the triangle weaver, is a species of cribellate orb weaver in the family of spiders known as Uloboridae. It is found in the eastern United States and Canada.
This spider makes use of its triangle-shaped web in a unique fashion compared to most orb-weaving spiders. Using its body as a bridge between an anchor line and the main trap line of the web, it uses its legs to reel in the silk leading to the rest of the web to increase tension within the structure. It waits until prey makes contact with the web, then releases the held anchor line, causing the web (and the spider) to spring forwards 2-3 cm…

Text: Wikipedia (en), CC BY-SA 4.0 — https://en.wikipedia.org/wiki/Hyptiotes_cavatus

## Photo

![Triangle weaver](https://animalchecklist.com/img/animals/triangle-weaver/medium.jpg)

Photo: Lyn Roueche · CC0 · inaturalist — https://www.inaturalist.org/observations/102287481

## Machine access

`GET https://animalchecklist.com/api/v1/animals/triangle-weaver?lang=nl` — see [openapi.json](https://animalchecklist.com/openapi.json).