---
title: "Western Thatching Ant"
description: "Formica obscuripes — Insetos e aranhas. Formica obscuripes, the western thatching ant, is a species of ant in the family Formicidae."
canonical: https://animalchecklist.com/pt/animal/western-thatching-ant
last_updated: 2026-09-20
---

# Western Thatching Ant

> Formica obscuripes — Insetos e aranhas. Formica obscuripes, the western thatching ant, is a species of ant in the family Formicidae.

- Scientific name: *Formica obscuripes*
- Category: `insects` (Insetos e aranhas)
- Habitats: unknown
- iNaturalist observations: 7757
- Wikidata: [Q3651868](https://www.wikidata.org/wiki/Q3651868)
- iNaturalist taxon: [69267](https://www.inaturalist.org/taxa/69267)

## Names

- en: Western Thatching Ant

## Countries with the most observations

US (1773), CA (976)

## Summary

Formica obscuripes, the western thatching ant, is a species of ant in the family Formicidae. It is native to North America. It builds large mounds covered by small pieces of plant material. The number of adult workers per colony may reach up to 40,000. F. obscuripes feeds on various insect species, consumes nectar from homopterous insects they tend, and occasionally consumes plant tissue.

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

## Photo

![Western Thatching Ant](https://animalchecklist.com/img/animals/western-thatching-ant/medium.jpg)

Photo: Erin Springinotic · CC0 · inaturalist — https://www.inaturalist.org/observations/46405983

## Machine access

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