Aphaenogaster cockerelli

Aphaenogaster cockerelli · Order: Hymenoptera · Family: Formicidae

Can bite. It can bite people, causing a painful bite.

Source: Wikipedia

Aphaenogaster cockerelli
Photo: iNaturalist user, CC0

It lives in upland desert plains of the Southwestern United States and Mexico, building large underground colonies on open ground or beside rocks. Workers forage daily for seeds, plant material and dead insects, with about half of their diet consisting of insect corpses.

Source: Wikipedia

How to recognize it

Two distinctive spines on the propodeum help identify it. The shape of its head distinguishes it from similar species.

Source: Wikipedia

What it eats

Workers leave the nest each day to collect seeds, plant material and dead insects. Roughly half of what they eat are the corpses of insects.

Source: Wikipedia

Life cycle

Nu­p­ti­al flights occur in July at dusk in the Chihuahuan Desert. Each colony has a single queen.

Source: Wikipedia

When you see it

Nu­p­ti­al flights happen in July at dusk in the Chihuahuan Desert.

Source: Wikipedia

Lookalikes

It can be confused with Novomessor albisetosus, but differs in head shape.

Source: Wikipedia

Where it is found in the US

Recorded in 5 of 51 states and DC. Most records: Texas, Arizona, New Mexico, Nevada, California.

Darker = more records. Counts are museum and citizen-science records, not population size.

Source: GBIF

Status: native in North America; native in United States. Source: iNaturalist

Months it is reported in the US

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Source: GBIF

More photos

Questions people ask

Do they bite?

Yes, they can bite and the bite is powerful.

Source: Wikipedia

When are their nuptial flights?

Nuptial flights occur in July at dusk in the Chihuahuan Desert.

Source: Wikipedia

How can I tell them apart from similar ants?

Look for two spines on the propodeum and the distinctive shape of the head.

Source: Wikipedia

Same family (Formicidae)

Sources

  • Wikipedia: https://en.wikipedia.org/wiki/Novomessor_cockerelli

Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia

Text written 2026-10-25 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-25.

How this page works

This is one bug's fact sheet. The colored box at the top says whether it is dangerous. Sections below cover how to recognize it, whether it is a pest, and how to deal with it. The US map shows which states have records; tap a state to see other bugs there.

Every fact on Bug FAQ comes from a named source (university extension sites, government agencies, GBIF, iNaturalist, Wikipedia). The source is linked next to each section. If we have no source for something, we leave it out.