---
title: "Black-tailed Ostearius"
description: "Ostearius melanopygius — Insetos e aranhas. Ostearius melanopygius is a species of sheetweb spider in the family Linyphiidae."
canonical: https://animalchecklist.com/pt/animal/black-tailed-ostearius
last_updated: 2026-09-20
---

# Black-tailed Ostearius

> Ostearius melanopygius — Insetos e aranhas. Ostearius melanopygius is a species of sheetweb spider in the family Linyphiidae.

- Scientific name: *Ostearius melanopygius*
- Category: `insects` (Insetos e aranhas)
- Habitats: unknown
- iNaturalist observations: 918
- Wikidata: [Q1761555](https://www.wikidata.org/wiki/Q1761555)
- iNaturalist taxon: [226706](https://www.inaturalist.org/taxa/226706)

## Names

- en: Black-tailed Ostearius
- fr: Érigone cul-noir
- nl: Zwartgatje

## Countries with the most observations

FR (112), AU (81), ZA (50), NL (32), PT (30), GB (28), ES (25), DE (24), IT (24), NZ (21), AT (9), PL (6)

## Summary

Ostearius melanopygius is a species of sheetweb spider in the family Linyphiidae. It is found in South America, and within a range from the Canary Islands to Egypt and Turkey, South Africa, China, and New Zealand. It has been introduced into Europe, as well.

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

## Photo

![Black-tailed Ostearius](https://animalchecklist.com/img/animals/black-tailed-ostearius/medium.jpg)

Photo: Liubov Ilminska · CC0 · inaturalist — https://www.inaturalist.org/observations/215268604

## Machine access

`GET https://animalchecklist.com/api/v1/animals/black-tailed-ostearius?lang=pt` — see [openapi.json](https://animalchecklist.com/openapi.json).