---
title: "Redback Spider"
description: "Latrodectus hasselti — Insetti e ragni. The redback spider (Latrodectus hasselti), also known as the Australian black widow, is a species of highly venomous spider believed to originate in Australia, but which is now found in Southeast Asia, Japan and New Zealand."
canonical: https://animalchecklist.com/it/animal/redback-spider
last_updated: 2026-09-20
---

# Redback Spider

> Latrodectus hasselti — Insetti e ragni. The redback spider (Latrodectus hasselti), also known as the Australian black widow,  is a species of highly venomous spider believed to originate in Australia, but which is now found in Southeast Asia, Japan and New Zealand.

- Scientific name: *Latrodectus hasselti*
- Category: `insects` (Insetti e ragni)
- Habitats: `urban` (Città e giardini)
- iNaturalist observations: 6701
- Wikidata: [Q82544](https://www.wikidata.org/wiki/Q82544)
- iNaturalist taxon: [146765](https://www.inaturalist.org/taxa/146765)

## Names

- en: Redback Spider
- de: Rotrückenspinne
- es: Viuda negra de espalda roja
- nl: Roodrugspin

## Countries with the most observations

AU (6173), JP (113), NZ (66), ID (12)

## Summary

The redback spider (Latrodectus hasselti), also known as the Australian black widow,  is a species of highly venomous spider believed to originate in Australia, but which is now found in Southeast Asia, Japan and New Zealand. It has also been found in packing crates in the United States with colonies elsewhere outside Australia. It is a member of the cosmopolitan genus Latrodectus, the widow spiders. The adult female is easily recognised by her spherical black body with a prominent red stripe on the upper side of her abdomen and an hourglass-shaped red/orange streak on the underside. Females usually have a body length…

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

## Photo

![Redback Spider](https://animalchecklist.com/img/animals/redback-spider/medium.jpg)

Photo: Joshua S. Martin · CC0 · inaturalist — https://www.inaturalist.org/observations/280728372

## Machine access

`GET https://animalchecklist.com/api/v1/animals/redback-spider?lang=it` — see [openapi.json](https://animalchecklist.com/openapi.json).