Polyrhachis palmerae

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Endemic to the Kimberley region in Western Australia, a tropical area with wet summers and dry winters ^[1][2].
• Colony Type: Colony structure is unconfirmed. No specific data on queen number or social structure.
• Size & Growth:
  • Queen: Unconfirmed, no queen measurements available.
  • Worker: 8.52-9.27 mm total length ^[1].
  • Colony: Unknown, no colony size data available.
  • Growth: Moderate, estimated based on genus patterns.
  • Development: Estimated 6-10 weeks at optimal temperature. (Development time is estimated, no specific studies on this species.)
• Antkeeping:
  • Temperature: Keep warm, roughly 25-30°C, based on tropical habitat inference.
  • Humidity: Keep nest substrate consistently moist but not waterlogged, with a humidity gradient.
  • Diapause: No, not required as Kimberley is tropical.
  • Nesting: In nature, they nest in soil or under rocks. Use a naturalistic setup with soil or a Y-tong/plaster nest.
• Behavior: These ants are generally calm and not aggressive toward keepers. Workers are active foragers and have formic acid for defense, like all Formicinae. Escape risk is moderate due to their size, use standard barriers.
• Common Issues: lack of available colonies due to limited endemic range, humidity control can be tricky for tropical species, overheating risk if heat sources dry out the nest too quickly, reduced activity during dry season periods

Housing and Nest Setup

Polyrhachis palmerae does well in a naturalistic setup that mimics their Kimberley habitat. Workers are 8.52-9.27 mm total length ^[1], so use chambers that give them room to move comfortably. A formicarium with soil or a Y-tong/plaster nest works well. Provide an outworld for foraging and a water reservoir to maintain humidity. Ensure good ventilation to prevent mold while keeping moisture consistent.

Feeding and Diet

Polyrhachis palmerae is omnivorous. Offer protein sources like small insects twice weekly and constant sugar water or honey. Remove uneaten prey after 24-48 hours to prevent mold. Observe colony preferences, as some Polyrhachis can be picky.

Temperature and Heating

Keep the colony warm at roughly 25-30°C, based on their tropical habitat. Use a heating cable on one side of the nest to create a temperature gradient, allowing ants to self-regulate. Place heat on top to avoid drying moisture too quickly.

Humidity and Water

Maintain moderate to high humidity by keeping the nest substrate moist but not waterlogged. A water tube or cotton reservoir provides constant access. Monitor for dryness or clustering at water sources.

Behavior and Temperament

Workers are calm and not aggressive, actively foraging in the outworld. They have formic acid for defense but rarely spray unless threatened. Their size makes them easier to observe and contain.

Frequently Asked Questions

Report an Issue

The current care sheet is based fully on literature. See inconsistencies, or something that's incorrect? Please report here, it will be resolved after review from an admin. Contributing to the blogs tab also helps providing information, to make us be able to further improve the caresheets. Thank you for your support!

References