Myrmecocystus mexicanus

Few ants are as biologically odd as the honeypots. In Myrmecocystus mexicanus, specialised workers called repletes turn themselves into living storage vessels, ballooning their abdomens with sweet liquid that feeds the colony through lean periods. It belongs to the arid southwestern fauna and comes from Mexico, where the long dry season makes that stored food matter. Founding is claustral, with the queen sealing in to raise the first workers, and it is night-active in the wild. Rated Intermediate, you will get the most from it once you understand heat gradients and feeding rhythms. The payoff is a colony that does something you will not see anywhere else in the hobby.

A nectar specialist whose foragers collect sweet liquid and pass it to repletes that store it in their swollen abdomens, banking food for the colony. Sugar water and nectar carry the diet, with insect protein fed to the brood to sustain larval growth.

★★★ readily · ★★ moderately · ★ occasionally · ✗ not eaten

Found a young colony in a test tube, then graduate it once the founding chamber crowds with brood and workers. Because repletes hang from the ceiling, give this arid honeypot ant a dry acrylic or ytong nest with chamber headroom, plus a roomy warm arena. Keep the nest dry and the arena separate so the gradient these ants rely on stays clear. Hold escapes in check with a fluon (PTFE) or oil barrier, or talc and water. ANTonTOP formicaria and starter kits are sized for this arid nest-and-arena split, barrier ready.

Run the nest at 24-28 °C and the arena warmer at 26-32 °C, mirroring its arid home. Keep humidity low, 35-50% in the nest and 20-40% in the arena. A gentle gradient from heating one end lets the colony pick its comfort zone. Hibernation is not required, so keep it active and feeding year-round at room-to-warm temperatures.

Honeypots are steady rather than explosive, slow through founding before the worker force snowballs, with brood reaching workers in roughly 6-12 weeks. A mature colony can reach up to 10,000 workers. You receive a queen with workers and brood, already past the cautious early stage of founding.

• This is the honeypot ant of textbooks, the species most often pictured when people first meet the living-larder repletes.
• A full replete can swell to the size of a small grape, immobile and hanging from the chamber roof as a food store.
• Indigenous peoples of the Southwest and Mexico have long dug up these repletes to eat as a sweet treat.
• Myrmecocystus forages in the cool of night or dawn in the wild, conserving water in a punishing desert climate.

Is Myrmecocystus mexicanus good for beginners?

It is rated Intermediate, so it suits a keeper who has already raised one easy colony and is comfortable with heat gradients and arid setups.

Does Myrmecocystus mexicanus need a winter rest?

No. Hibernation is not required, so keep it active and feeding all year at room-to-warm temperatures.

Does this honeypot ant sting or bite?

No. It only delivers a mild bite and has no sting.

How big does a Myrmecocystus mexicanus colony get?

Up to 10,000 workers in a mature colony.

How big is the queen?

The queen measures 14-16 mm, with workers at 5-10 mm.

How fast does Myrmecocystus mexicanus grow?

Steady rather than fast; brood develops to workers in about 6-12 weeks, then the worker force builds up over time.

What does it eat?

Mainly sugar water and nectar or jelly, plus insects like crickets and flies for protein. Repletes store surplus sugar for the colony.

Will it arrive alive?

Yes. We send a queen with workers and brood, add a heat or cool pack for the season, and dispatch within 24 h with tracking.

Escape prevention. Coat the inner rim of every open arena with fluon (PTFE), or use talc-and-water or an oil barrier as a backup, and keep a tight, fine-mesh lid on top. Check the barrier regularly, since dust, condensation and feeding debris break a fluon line over time. Keep tubing connectors tight and seal any gaps in the nest.

Keeping reminders. Always offer fresh water and never let the nest dry out completely. Give carbohydrates continuously and protein a few times a week, and remove uneaten insect prey within 24 hours before it moulds. Keep the formicarium out of direct sunlight and away from constant vibration, which stresses a young colony. A water-filled test tube plugged with cotton makes an ideal spare incubator whenever you need one.

Before you buy – do not rehouse too early. Have a test-tube setup or a small formicarium with an outworld and a working barrier ready before your colony arrives. A founding colony grows slowly at first, which is normal. Moving a small colony into a large nest too soon invites mould, mites and stress, and the workers die off one by one. Keep the colony in its open test tube on the arena, plug the nest entrance with cotton, and open up the next chambers only once the colony fills roughly 10-15% of the space.

What we ship. Every colony ships with a live-arrival guarantee, backed by our 24h unboxing-video guarantee: if the queen does not arrive alive, we reship free. Parcels travel with DHL, InPost (PL) or EMS, with a heat or cold pack to suit the season, packed discreetly and securely. We ship across the EU and worldwide, with free shipping over the Europe threshold.