Odontomachus simillimus

Unlike its polygyne cousins this one runs on a single queen, which makes founding and tracking the colony a little cleaner from the start. The draw is the same trap-jaw weapon the genus is famous for: mandibles cocked wide and released on contact to seize prey or jump the ant out of harm’s way. It ranges across Southeast Asia and the Pacific, a tropical spread with no real winter, so warmth and feeding never let up. It is a tidy, hard-hunting ant, but the heat, humidity and live prey make it a Pro pick for keepers who already manage demanding setups with confidence.

A sight-driven hunter that triggers its spring-loaded mandibles the moment prey brushes its sensory hairs. Live insects build the brood, while the adults keep their own tanks topped up with sugars and nectar.

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

Found the colony in a test tube and move it across once the first workers are established. This humid-forest trap-jaw wants a moisture-retaining nest in Ytong, gypsum or a hydratable hybrid kept damp, kept fairly compact early so a small colony is not lost in empty chambers. Give it a roomy hunting arena and enlarge the nest as numbers climb. The ants are fast and athletic, so keep a fluon (PTFE) rim, oil, or talc and water on the arena. ANTonTOP formicaria and starter kits take this colony from founding through its first couple of hundred workers.

A warm, humid tropical ant with no cool season behind it. Keep the nest at 24-27 °C and the arena a little warmer at 25-29 °C, with nest humidity 70-85% and arena humidity 60-75%. Heat one side only so the workers can move along a warm-to-cool gradient. No hibernation is needed: feed normally and hold the temperature steady throughout the year.

Led by a single queen, the colony grows at a measured pace toward around 200 workers over time, a manageable size to follow closely. Upgrade the nest as the brood fills the chambers. You receive a queen with workers and brood, ready to move into a humid setup.

• Nuptial flights for this species take off in the evening, peaking around 19:00.
• Odontomachus jaws produce one of the fastest self-powered strikes ever measured, finishing in roughly a tenth of a millisecond.
• A worker can fire its mandibles at the ground to bounce itself away from danger, reusing its hunting tool as an escape device.
• The strike is set off by fine sensory hairs inside the open jaws, triggering one of the quickest reflexes known in any animal.

Is this a good beginner ant?

No. It is Pro-rated and best for keepers experienced with tropical, live-prey colonies.

Does Odontomachus simillimus need a winter rest?

No, it is tropical with no hibernation; keep it warm and active all year.

Does this trap-jaw sting or bite?

Yes, its sting is painful, so avoid bare-hand contact in the arena.

How big does the single-queen colony get?

Up to around 200 workers from its single queen.

How large is the queen?

The queen is 11-12 mm and workers are 10-11 mm.

How fast does it grow?

Moderately. A single-queen colony builds at a measured, steady rate.

What do these trap-jaw ants feed on?

Live and freshly killed insects plus sugar water, nectar or jelly for energy.

How is it shipped?

As a queen with workers and brood, packed with a heat or cool pack and sent within 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.