Polyrhachis bihamata

Those enormous backward-curving hooks are the whole point: bihamata is one of the most dramatic spiny ants going, and the armoured silhouette alone justifies a display tank. It is firmly a keeper’s keeper, though, with care demands that put it in the advanced bracket, so it suits people who already have tropical colonies under their belt. The reward is a bold, sculptural Indonesian rainforest species that looks like nothing else. No sting and only a mild bite, though the challenge is real.

Bihamata feeds as an arboreal omnivore: workers fuel themselves on sweet liquids while protein from insects goes to the queen and brood. Keep a sugar source available at all times and supply insect protein two to three times a week to keep development moving.

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

This hook-spined climber is one for steadier hands. Start the colony in a test tube or small humid nest and resist upgrading until the first workers fill the floor and brood holds firm. Pick a moisture-retaining nest in aerated ytong or acrylic, matching the damp conditions these arboreal ants favour. Be strict with the arena rim: a fresh band of fluon (PTFE), oil, or talc and water, since they are nimble over smooth walls. ANTonTOP formicaria and starter kits supply a matched humid nest, arena and barrier, so even an advanced colony is housed correctly.

Lean into the gradient: heat from one side alone so the colony can choose its place along a warm-to-cool run. Hold the nest at 20-26 °C with the arena a little warmer at 22-32 °C, and keep nest humidity at 55-70% against 40-60% in the arena. This is a tropical ant with no cold rest, so conditions and feeding stay constant throughout the year.

Development runs quick for a spiny ant once the colony finds its feet, building over time toward 500-5000 workers. Your order is a queen with workers and brood, ready to settle into a humid nest with an attached arena.

• Bihamata is famous for the pair of large, recurved hooks on its petiole; the Latin name itself means ‘twice-hooked’, and the barbs can snag a predator or even lock workers together.
• It nests low or at ground level yet ranges up into the canopy to forage, a habit noted across the genus.
• Like all Polyrhachis it is stingless, defending the nest with formic acid, mandibles and its formidable spines.

Is Polyrhachis bihamata good for beginners?

No, it is rated Pro and suits keepers with tropical ant experience.

Does bihamata need a winter rest?

No, it is tropical with no hibernation, so keep it warm and fed all year.

Does the hook-spined bihamata sting or bite?

No, it has no sting and only a mild bite.

How big does a bihamata colony get?

It can reach 500-5000 workers.

How large is the bihamata queen?

The queen is about 14 mm and workers are 8-11 mm.

How fast does it grow?

Development is fast for a spiny ant once the colony is established.

What does this hook-spined ant eat?

Sugar water or nectar for energy plus live insects like crickets and flies for protein.

Will it arrive alive?

You receive a queen with workers and brood, packed with a heat or cool pack and shipped within 24 h 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.