Odontomachus brunneus

Here is a way into the famous trap-jaws without committing to full tropical husbandry. brunneus has the same lightning mandible strike the genus is loved for, but it comes from subtropical Florida, so its temperature window sits a touch lower and a touch more forgiving than its equatorial relatives. It is a single-queen species that settles at a neat display size, keeping the focus on its fast, eye-catching hunting. The Pro rating still applies and it expects solid husbandry, but the easier climate makes it a sensible first step into the genus for the right keeper.

A predator that takes live prey. Workers hunt with jaws cocked open and snap them shut on the catch, hauling it back to the larvae, while the adults drink sugars for their own energy.

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

Set this trap-jaw up with a humid nest, deep substrate, and a spacious arena for foraging, since the species hunts plenty in the open. Start small and upgrade as the colony and brood fill out. Being subtropical it runs a touch cooler than its tropical relatives, but still wants a moisture-holding Ytong or hybrid nest rather than a dry one. Apply fluon (PTFE), oil, or talc and water to the arena rim to prevent escapes. An ANTonTOP formicarium or starter kit supplies the damp nest, arena and barrier ready to go.

Subtropical origins mean it runs a touch cooler than its tropical relatives, so keep the nest at 23-27 °C and the arena at 24-28 °C, with humidity of 70-85% in the nest and 60-75% in the arena. Heat one side only for a gradient. Hibernation is not required, so keep it active and feeding through the year.

Brood develops in roughly 8.5 weeks (about 59 days at 25 C), so the colony builds at a steady pace toward up to 500 workers. It comes to you as a queen with workers and brood.

• This Florida native is a favourite research ant, studied closely for how workers divide jobs by age and how the trap-jaw strike actually works.
• The mandibles latch open under spring tension and are released by long trigger hairs, snapping shut far faster than the muscles could ever move them directly.
• Workers can aim that snap at the ground to hurl themselves backward in an escape jump, turning a feeding weapon into an emergency exit.
• Founding is semi-claustral, so the queen hunts outside the nest while raising her first generation of workers.

Is the Florida trap-jaw ant good for beginners?

No, it is Pro-rated, though its subtropical climate is more forgiving than tropical Odontomachus.

Does Odontomachus brunneus need a winter rest?

Hibernation is not required; keep it active and feeding year-round.

Does this trap-jaw ant sting or bite?

Yes, the sting is painful, so handle carefully.

How big does the colony get?

Up to 500 workers, headed by one queen.

How large is the queen?

Around 10-12 mm, with workers at 10-11 mm.

How fast does it grow?

Brood takes about 8.5 weeks (around 59 days at 25 °C) to develop, so growth is steady.

What does it eat?

Live insects as the main protein plus sugar water, nectar, or jelly.

Will it arrive alive?

You receive a queen, workers, and brood with a heat or cool pack, shipped in 24 hours with tracking for 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.