Polyrhachis nidificans

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Native to the Philippines, East Indies, and Malabar (coastal southwestern India) ^[1][2]. In nature, they nest in small paper-like structures attached to leaves in forested areas ^[3].
• Colony Type: Based on nest observations with one female per nest, likely monogyne ^[3].
• Size & Growth:
  • Queen: ~10-13 mm, inferred from Polyrhachis genus ^[4]
  • Worker: ~6-9 mm, inferred from Polyrhachis genus ^[4]
  • Colony: Up to 10 workers documented in natural nests ^[3]. Mature colonies may reach up to 300 workers based on genus patterns ^[4].
  • Growth: Moderate, inferred from Polyrhachis genus patterns ^[4]
  • Development: 6-8 weeks at 25-28°C, inferred from related Polyrhachis species ^[4] (Development time is inferred from genus patterns. Warmer temperatures may accelerate development.)
• Antkeeping:
  • Temperature: Keep warm, roughly 24-28°C, based on tropical habitat ^[4]
  • Humidity: Maintain substrate consistently moist but not waterlogged, based on leaf-nesting habitat ^[4]
  • Diapause: No, tropical species do not require diapause
  • Nesting: Provide Y-tong or plaster nests with climbing structures, based on arboreal nature ^[4]
• Behavior: Generally peaceful and non-aggressive. Escape risk is moderate due to size and climbing ability ^[4].
• Common Issues: tropical species requires consistent warmth, temperatures below 20°C for extended periods can be harmful, small colony size in nature means founding colonies are slow to establish and vulnerable to stress, humidity control is important, too dry causes dehydration, too wet promotes mold, arboreal nature means they need climbing structures and may not use ground-level foraging areas much

Housing and Nest Setup

Polyrhachis nidificans is an arboreal species that naturally builds small paper-like nests attached to leaves ^[4]. In captivity, they do well in a Y-tong nest with smooth chambers or a plaster nest for humidity maintenance ^[4]. The outworld should include climbing structures like branches or artificial leaves since they prefer vertical travel ^[4]. Ensure all connections are secure to prevent escape, as they can climb smooth surfaces ^[4].

Feeding and Diet

Polyrhachis ants are omnivorous, accepting sugar sources like honey and protein from small insects ^[4]. Offer honey or sugar water once or twice a week, and protein prey like fruit flies every 5-7 days ^[4]. Remove uneaten prey after 24 hours to prevent mold ^[4].

Temperature and Heating

This tropical species requires warm temperatures year-round, roughly 24-28°C ^[4]. Below 20°C for extended periods can stress the colony ^[4]. Use a heating cable on one side of the nest to create a gradient, but avoid direct sunlight ^[4].

Humidity and Water

Maintain moderate humidity with a consistently moist substrate, but ensure good ventilation to prevent mold ^[4]. Use a water tube for hydration and mist the outworld occasionally, allowing it to dry between mistings ^[4].

Colony Development

Colonies start with a single queen, but founding behavior is unconfirmed ^[3]. The first brood develops in 6-8 weeks at optimal temperatures ^[4]. Initial colonies are small, with up to 10 workers, and growth is moderate ^[3][4]. Founding colonies should be kept quiet and dark until workers emerge ^[4].

Frequently Asked Questions

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References