---
title: "Brown Widow"
description: "Latrodectus geometricus — Insetti e ragni. Latrodectus geometricus, commonly known as the brown widow, brown button spider, grey widow, brown black widow, house button spider or geometric button spider, is one of the widow spiders in the genus Latrodectus."
canonical: https://animalchecklist.com/it/animal/brown-widow
last_updated: 2026-09-20
---

# Brown Widow

> Latrodectus geometricus — Insetti e ragni. Latrodectus geometricus, commonly known as the brown widow, brown button spider, grey widow, brown black widow, house button spider or geometric button spider, is one of the widow spiders in the genus Latrodectus.

- Scientific name: *Latrodectus geometricus*
- Category: `insects` (Insetti e ragni)
- Habitats: `urban` (Città e giardini)
- iNaturalist observations: 31665
- Wikidata: [Q82243](https://www.wikidata.org/wiki/Q82243)
- iNaturalist taxon: [47383](https://www.inaturalist.org/taxa/47383)

## Names

- en: Brown Widow
- de: Braune Witwe
- es: Viuda café
- fr: Veuve brune
- nl: Bruine weduwe

## Countries with the most observations

US (17131), BR (4000), ZA (1976), MX (1914), AR (1033), CR (200), CO (184), BO (163), PE (117), ZW (109), DO (96), IN (92)

## Summary

Latrodectus geometricus, commonly known as the brown widow, brown button spider, grey widow, brown black widow, house button spider or geometric button spider, is one of the widow spiders in the genus Latrodectus. As such, it is a 'cousin' to the more infamous Latrodectus mactans (black widow).
L. geometricus has black and white patterns on the sides of its abdomen as well as an orange-yellow colored hourglass shape marking. Their eggs are easily identified by points that project from all over the egg sacs. L. geometricus are found all over the world, but are believed to originate in Africa or South America. Their…

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

## Photo

![Brown Widow](https://animalchecklist.com/img/animals/brown-widow/medium.jpg)

Photo: Jade Fortnash · CC0 · inaturalist — https://www.inaturalist.org/observations/105941356

## Machine access

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