Polyrhachis diaphanta

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Sulawesi, Indonesia – tropical natural forests at 230–1180 m elevation ^[1][2][3]
• Colony Type: Based on typical *Polyrhachis* patterns, likely monogyne (single queen colonies). Colony size probably reaches several hundred workers at maturity.
• Size & Growth:
  • Queen: Size data unavailable for this species, inferred from the *Polyrhachis* genus at about 8–10 mm.
  • Worker: Size data unavailable, inferred from the *Polyrhachis* genus at about 5–7 mm.
  • Colony: Probably several hundred workers – estimated from genus patterns.
  • Growth: Moderate – typical for tropical Formicinae
  • Development: Estimated 6–8 weeks at 24–28 °C, based on related Formicinae. (Development time is inferred from genus‑level data, specific timing unconfirmed for this species.)
• Antkeeping:
  • Temperature: Keep at 24–28 °C. A heating cable on one side of the nest creates a gradient. Avoid temperatures below 22 °C for extended periods.
  • Humidity: Keep the nest substrate consistently moist but not waterlogged. Mist regularly to maintain high humidity. Provide a water tube.
  • Diapause: No – tropical species that remains active year‑round. No hibernation required.
  • Nesting: Prefers humid, naturalistic setups. A Y‑tong (AAC) nest with a moisture reservoir works well, or a naturalistic terrarium with rotting wood and soil. Provide climbing structures for semi‑arboreal activity.
• Behavior: Polyrhachis diaphanta workers are active foragers that search for small insects and sugar sources. They are moderately aggressive when defending the colony – they bite and spray formic acid (no functional stinger). Workers are agile climbers, so standard escape barriers are needed.
• Common Issues: high humidity needs can cause mold if ventilation is poor – ensure airflow, lack of specific care data means you must start with genus‑typical conditions and adjust, tropical species are sensitive to temperature drops – keep consistently warm, slow colony growth means less tolerance for mistakes – be patient, wild‑caught colonies may carry parasites, quarantine new stock

Housing and Nest Setup

Polyrhachis diaphanta does well in setups that replicate its natural forest habitat. A Y‑tong (AAC) nest with a built‑in water reservoir works well for maintaining humidity. Alternatively, use a naturalistic terrarium with a soil substrate and pieces of rotting wood. Because many *Polyrh

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References