# Harvester ant

*Pogonomyrmex spp.*

**Identification confidence:** Identifiable with care

## How to recognise it

- Large at 5 to 10 mm, red to reddish-brown, with a conspicuous fringe of long hairs beneath the head forming a beard-like structure called a psammophore.
- Nests are surrounded by a cleared, vegetation-free disc of bare ground, often with a gravel-covered surface and a single obvious entrance.
- Workers carry seeds along well-defined foraging trails radiating from the nest.

## What it leaves behind

- A distinctly bare circular clearing around the nest entrance, unlike the fire ant's vegetated dome.
- Seed husks accumulated near the entrance.

## Why an infestation persists

Seed-harvesting ants of open arid ground. They sting painfully when the nest is disturbed but are not building-invading pests, and several species are ecologically important — including as the primary food of the threatened Texas horned lizard.


## Where it occurs

Western and southwestern United States, extending into the Great Plains.

## What prevents it

- Site play areas and paths away from established nests rather than removing colonies that pose no structural threat.

## Commonly confused with

- **Red imported fire ant** (*Solenopsis invicta*) — Reddish-brown head and thorax with a darker abdomen, and workers of clearly varying sizes within one colony.

**Verdict:** monitor-and-assess. Rarely a structural or indoor pest, and ecologically valuable; identification usually ends the question.

Source: https://againstpest.shop/identify/ants/harvester-ant/