Myrmelachista hoffmanni

A small ant with big-colony ambitions, hoffmanni founds with several queens in one nest, which keeps growth ticking along once it gets going. It is a Costa Rican forest species, so it wants steady warmth and high humidity year-round rather than any seasonal swing. Brood develops quickly, and a well-kept colony fills out at a pace that keeps the project interesting. The temperament is forgiving; what really matters is holding that tropical climate steady, which is why it sits at Intermediate rather than beginner. Get the humidity dialled in and it largely runs itself.

An omnivore built on sugars for the workforce and protein for the brood. These small foragers drink sweet liquids eagerly and carry insect prey back to the larvae. Offer a standing sugar source and protein a few times a week.

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

Begin in a test tube and upgrade to a humid nest once the founding workers blanket the floor. This tropical forest ant wants steady damp, so a Ytong, 3D-printed or hybrid nest that holds moisture fits its biology far better than a dry chamber; keep one corner reliably wet. Edge the arena with fluon (PTFE), oil, or talc and water to keep wanderers in. An ANTonTOP formicarium or starter kit bundles the moisture-holding nest with the arena and barrier in one ready set.

A tropical ant that wants steady warmth, so hold the nest at 21-25 °C and the arena at 22-27 °C. Keep humidity high, 65-80% in the nest and 55-70% in the arena, as in its Central American forest home. Heat one end only and leave a cooler corner. There is no hibernation, so keep it warm, fed and active all year.

Several queens laying alongside a fast brood cycle push the numbers up quickly, and a settled colony can reach up to 5,000 workers. Your colony arrives as a queen or queens with workers and brood.

• Myrmelachista are small ants that typically nest inside live stems, hollow twigs and plant cavities rather than digging into the ground.
• The genus is closely tied to plants, with many species sheltering and tending honeydew-producing insects inside the same wood they live in.
• Some Myrmelachista create Amazonian “devil’s gardens”, killing competing vegetation with injected formic acid to clear space around their host tree.
• Despite their tiny workers, several species in this genus run polygynous nests with multiple queens, which lets a colony spread through a stand of host plants.

Is Myrmelachista hoffmanni good for beginners?

It is rated Intermediate; the warm, very humid tropical keep needs some attention.

Does this tropical Costa Rican ant need a winter rest?

No. It is tropical and stays active all year, no winter rest needed.

Does Myrmelachista hoffmanni sting or bite?

No sting; it gives only a mild bite and is harmless.

How large can a hoffmanni colony get?

Up to 5,000 workers.

How big is the queen and how big are the workers?

The queen measures 6.5-7.5 mm, with workers at 3.5-6 mm.

How fast does it grow?

Brood develops fast and the multiple queens speed things up.

What does it eat?

Mainly sugar water and nectar or jelly, plus small insects for protein.

Will it arrive alive?

Yes. It ships with workers and brood, plus a heat or cool pack, sent within 24 h with tracking for a safe live arrival.

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.