Odontoponera transversa

The appeal here is timing: where most tropical ants slip out at night, this tough, dark-bodied ponerine works in the open during the day, starting before dawn, peaking in the afternoon and stopping by evening, so its hunting is easy to watch. It is a single-queen predator that takes live prey and can build into a sizeable, active colony. Compact but hard-bodied, it makes a confident display ant. The constant heat, high humidity and live-feeding routine put it in Pro territory, suited to keepers already comfortable with warm tropical setups.

An aggressive daytime hunter that chases down live prey in the open rather than lying in wait. Insect prey powers brood growth, with sugars and nectar keeping the foragers fuelled across a long active day.

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

Start in a test tube and step up once founding workers cover the floor and brood builds. A hot, humid tropical ground-forager, it wants a moisture-holding nest in Ytong, gypsum or a hydratable hybrid kept reliably damp, beside a roomy arena so the colony can patrol and hunt across open ground. Enlarge the nest as numbers climb toward the hundreds. The workers are active, so run a fluon (PTFE) barrier on the arena rim, or oil where PTFE will not stick. ANTonTOP formicaria and starter kits take this colony from founding through several hundred workers.

A hot, humid tropical species with no seasonal break. Hold the nest at 24-27 °C and the arena at 25-29 °C, with nest humidity 70-85% and arena humidity 60-75%. Heat one end only so the colony can settle along a warm-to-cool gradient. No hibernation is required: keep feeding steady and the temperature up throughout the year.

This single-queen colony grows at a moderate pace toward around 500 workers over time, building into a large, day-active group worth watching. Step the housing up as the colony climbs into the hundreds. You receive a queen with workers and brood, ready for a roomy, humid setup.

• This species was one of the first ponerine ants to have its genome assembled, giving researchers a reference for studying ponerine evolution and behaviour.
• It is an active, openly aggressive hunter that forages in daylight, an unusual habit for a tropical ant.
• Odontoponera workers are armed for defence at both ends, ready to bite and to sting when disturbed.
• The genus is recognised by the fine teeth along the front of the head and the toothed margins of the pronotum, a hallmark of these Southeast Asian ponerines.

Is this a good beginner ant?

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

Does Odontoponera transversa need a winter rest?

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

Does this ponerine sting or bite?

Yes, it has a painful sting, so keep hands out of the arena.

How big does this day-active colony get?

Up to around 500 workers over time.

How large is the queen?

The queen is 9-11 mm and workers are 8-10 mm.

How fast does it grow?

Moderately, building steadily into a colony of several hundred.

What does this daytime hunter 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.