Myopopone castanea

Myopopone castanea is one of the more unusual ponerines in the hobby, and its size makes every individual a pleasure to watch as the colony hunts. This is a project about quality of observation, not population: it stays small and slow, run by a single queen, and is prized for behaviour rather than numbers. It comes from Sulawesi in Southeast Asia, so it needs consistently warm and very humid conditions. Semi-claustral founding, demanding humidity and a live-prey diet all call for a confident keeper. It suits experts who want a deliberate, predatory colony of impressive ants.

A dedicated hunter. Sighted foragers take live and freshly killed insects, with a known liking for soft beetle larvae, and the adults drink sugars for energy, so keep fresh prey coming alongside a sugar source.

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

Raise this humidity-loving rainforest hunter in a warm, very damp test tube, and move only once the early workers cover the floor. Choose a moisture-retaining nest such as ytong, 3D-printed, or a well-aerated acrylic setup that keeps the brood air saturated, with a slightly drier arena. Upgrades stay modest, since the colony stays small. With sizeable workers, keep a dependable escape barrier of fluon (PTFE), oil, or talc-and-water on the arena. ANTonTOP formicaria and starter kits provide a humid nest, arena and barrier for a small predatory colony.

Rainforest humidity leads here: 70-85% in the nest and 60-75% in the arena, with the nest at 24-27 °C and the arena at 25-29 °C. Heat one end only so the colony can move between warmer and cooler spots. This tropical ant takes no hibernation, so keep it warm, humid and fed throughout the year.

Growth is slow, as expected of a ponerine, with the colony staying small at up to 300 workers. You receive a single fertilised queen with workers and brood to found the nest.

• Myopopone castanea is the only species in its genus, an unmistakable amber-chestnut ponerine, which is what castanea (chestnut) refers to.
• It is a specialist that hunts soft beetle larvae deep inside rotting logs, its workers and brood often found alongside the grubs.
• The queen and workers are close in size, a hallmark of primitive ponerines rather than highly caste-divided ants.
• Semi-claustral founding means the queen must hunt to feed her first brood, which is part of what makes the species demanding.

Is Myopopone castanea good for beginners?

No, it is Pro level, with semi-claustral founding, high humidity demands and a live-prey diet best left to experienced keepers.

Does Myopopone castanea need a winter rest?

No, it is tropical and active year-round; do not lower temperatures for a cool rest.

Does it sting or bite?

Yes, it has a sting and a mild bite, in keeping with its ponerine biology.

How large does the colony get?

It stays small, up to 300 workers, as a monogyne species.

How big is the queen?

The queen is 15-18 mm; workers are 11-14 mm.

How fast does it grow?

Slowly, as this ponerine builds its colony gradually.

What does this beetle-grub hunter eat?

Mainly live and freshly killed insects such as crickets and flies, with sugars only occasionally; it does not eat seeds.

How do you ship live ants?

A single queen with workers and brood travels with a seasonal heat or cool pack, dispatched within 24 h 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.