Polyrhachis gribodoi

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Rainforests of Borneo, Java, and Malaysia in the Indomalaya region, nesting in hollow branches and around tree bases ^[1][2].
• Colony Type: Colony structure is unconfirmed. Specific data on queen number is not available for this species.
• Size & Growth:
  • Queen: Size data unavailable, no measurements provided in research
  • Worker: 6.95-8.82 mm total length ^[1]
  • Colony: Colony size data unavailable, no specific counts provided
  • Growth: Moderate, inferred from tropical Polyrhachis patterns
  • Development: Unknown, no specific data available for this species (Development time is unconfirmed, maintain warm temperatures for optimal growth)
• Antkeeping:
  • Temperature: Keep warm, roughly 24-28°C, based on tropical rainforest habitat ^[1]. Use a heating cable if room temperature falls below this range.
  • Humidity: Keep nest substrate consistently moist but not waterlogged, with a humidity gradient. This matches their rainforest habitat ^[1].
  • Diapause: No, tropical species do not require winter diapause ^[1].
  • Nesting: Provide enclosed spaces like hollow branches or cork bark, as they nest in wood in the wild ^[1].
• Behavior: Arboreal foragers that climb actively. They are not highly aggressive but will defend their nest. Escape risk is moderate due to their size and climbing ability.
• Common Issues: dry conditions can cause colony decline, maintain moist substrate, standard test tube setups are unsuitable, provide wood-based nesting options, temperature drops below 22°C can stress the colony, colonies may grow slowly compared to faster-growing species, wild-caught colonies may carry parasites affecting health

Housing and Nest Setup

You need housing that reflects their arboreal lifestyle. In the wild, they nest in hollow branches and around tree bases ^[1]. Use cork bark, hollow twigs, or wooden elements in captivity. A Y-tong nest with narrow chambers can work, but add wood pieces for nesting. Avoid standard test tube setups for founding queens, they prefer enclosed wooden spaces. Provide an outworld with branches for foraging. Ensure escape prevention, as they are agile climbers ^[1].

Feeding and Diet

You should offer a varied diet. Provide sugar sources like honey water constantly, and protein such as small insects 2-3 times per week. Remove uneaten prey after 24-48 hours to prevent mold. Place food on branches or elevated surfaces, as they are arboreal foragers.

Temperature and Humidity Management

You must maintain warm and humid conditions year-round. Keep temperatures around 24-28°C, as they are from tropical rainforests ^[1]. Humidity should be high, keep the nest substrate moist but not waterlogged. Mist the outworld regularly and monitor with a hygrometer.

Colony Development and Growth

Colonies develop at a moderate pace. The queen is expected to be claustral, but this is unconfirmed for this species. First workers may be smaller than mature workers. Growth depends on consistent temperature and feeding. Patience is key, as colonies may grow slowly.

Behavior and Handling

Workers are active foragers with moderate aggression when defending their nest. They are arboreal, so provide vertical structures in the outworld. They use chemical communication and lay pheromone trails to food sources.

Frequently Asked Questions

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References