Stictoponera orthostoma

Size is the headline with this species. Within its Burmese group it is the heavyweight, and because both the queen and the workers run large, every ant in the nest is easy to see and follow, which makes the slow, deliberate ponerine hunting behaviour all the more satisfying to watch. It comes from the warm, humid forests of Burma and the wider South and Southeast Asian region, so the care leans tropical and moist, and the colony stays compact enough to manage comfortably. Rated Intermediate, it is the semi-claustral founding stage, where the queen forages early, that lifts it above a beginner ant.

A sight-hunting predator: live or freshly killed insects feed the brood and are caught by foraging workers on the ground. The adults take a little sugar for energy, so keep a light nectar source next to the prey.

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

Start this larger forest-floor ponerine in a small moisture-holding nest and upgrade to a roomier formicarium as the colony fills out. It wants Ytong, aerated concrete or plaster that holds water, kept reliably damp, with chambers wide enough for the bigger workers. Attach an arena for hunting and dust the rim with fluon (PTFE), or use oil or talc and water as a barrier. ANTonTOP formicaria and starter kits give this larger ponerine the room it needs, supplying the damp nest, arena and barrier together as a ready set.

This larger forest-floor ponerine wants tropical warmth and high moisture. Maintain the nest at 24 to 27 C and the arena at 25 to 29 C, with nest humidity at 70 to 85% and arena humidity at 60 to 75%. Heat only one side so the colony can settle along a warm-to-cool gradient, and keep the nest air reliably damp for a forest-floor ant. It is tropical with no winter rest, so keep the warmth steady and the feeding constant year-round with no cooling to arrange.

Growth follows the slow, steady ponerine curve rather than a quick climb, the colony adding workers gradually toward up to 500 at maturity. With its larger body size, every ant is easy to follow even while numbers stay modest. You receive a queen with workers and brood, packed to travel and ready for a humid founding nest.

• The queen barely outsizes her workers, both falling in the same 7 to 9 mm range, which makes finding the reproductive a real test.
• This is among the larger-bodied of the kept Stictoponera, so individual ants are easy to watch at work.
• Stictoponera was historically placed within Gnamptogenys, and older references list it accordingly.
• Like other ponerines it hunts as a lone forager on the warm, humid forest floor of its Burmese range.

Is Stictoponera orthostoma good for beginners?

It is Intermediate, best for keepers with prior experience.

Does Stictoponera orthostoma need a winter rest?

No, it is tropical and active all year.

Does this large Burmese ponerine sting or bite?

Yes, with a mild sting.

What colony size can I expect?

Up to 500 workers.

How large is the queen?

About 7-9 mm, the same size range as the workers.

How fast does a ponerine colony like this grow?

Slowly and steadily, the ponerine norm.

What does it eat?

Mostly insects like crickets and flies, plus sugar water, nectar or jelly; seeds are not eaten.

Will the ants arrive alive?

Yes, with a heat or cool pack, dispatched within 24 h and shipped 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.