Polyrhachis bicolor

• Habitat & nest structure
  Polyrhachis bicolor builds nests in vegetation (arboreal nests), often using plant material and sometimes incorporating silk or weaving behaviour. Their nests may be in leaves or in folded or stitched leaves using larval silk, or made within plant structures in shrubs or trees. Because they are arboreal, they spend much of their life off the ground.

• Feeding / foraging behaviour
  They forage on vegetation and in trees, exploring branches, leaves, etc. Their diet likely consists of small invertebrates, honeydew from sap-sucking insects, plant exudates, and perhaps sugary sources. They may not be as aggressive or bold as ground-hunters, being more adapted to navigating foliage.

• Colony size & social structure
  Colonies tend to be smaller to moderate in size, especially constrained by the space in arboreal nests. Workers are likely of a uniform caste (no extreme polymorphism), with a queen or reproductive at the core. Growth is subject to the limitations of arboreal nesting (space, nest stability, resource access).

• Defence & special traits
  As a formicine ant, P. bicolor does not have a sting but defends itself by biting and releasing formic acid (through an acidopore). Their arboreal lifestyle gives them access to elevated vantage points. Also, some subspecies have spines or hairs that assist in camouflage or protection.

If you are considering adding Polyrhachis bicolor to your collection, here are some points to consider and what to expect:

• Available in queen + worker combinations. Because colonies are arboreal, the initial nest may be small; a starter group with a queen and some workers is ideal.

• This species is particularly appealing for those who enjoy observing ant architecture and nesting behaviour (weaving, leaf nests, arboreal exploration).

• Because of their appearance and behaviour, they make attractive display species; they are better suited for keepers with some experience in humidity control, arboreal setups, and stable environments.

When you buy from us, you will receive healthy queens or colonies, supplied in secure packaging, with guidance on how to set up proper arboreal housing and care.

• Housing
  Provide an arboreal formicarium, or at least vertical and inclined surfaces with vegetation material or leaf-like structures. Leaves or small branches where they can build nests are very helpful. Include areas for them to weave or fold leaves if possible.

• Temperature & humidity
  Maintain warm, tropical to subtropical conditions. Ideal temperature range around 22–28 °C. Humidity should be relatively high; arboreal nests can dry out quickly so moisture retention is important.

• Feeding
  Offer a varied diet: small insects (live or frozen), sugar sources (honey water, nectar substitutes), possibly honeydew or diluted sugar solution. Ensure protein is available so brood develops well.

• Colony growth & patience
  The colonies may expand more slowly than ground-nesting aggressive predators; expansion depends on availability of space and resources in arboreal sections. Be patient in observing nest building behaviour.

• Maintenance & hygiene
  Because arboreal nests are exposed to air and plant material, fungal growth or mold can become a problem if there is too much moisture without ventilation. Remove dead prey, provide some airflow.

• Handling & observation
  Disturb nests minimally; arboreal ants may be more sensitive to disturbance. Observing them building nests, exploring foliage, and foraging in vegetation is rewarding. Provide observation windows or glass sides, but ensure they can retreat to dark or concealed areas.