Polyrhachis tibialis

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Native to South and Southeast Asia, including India, Sri Lanka, Myanmar, Thailand, Laos, Malaysia, Indonesia, and southern China. Found in forest ecosystems from sea level to 1400m ^[1][3][4].
• Colony Type: Colony structure unconfirmed for this species.
• Size & Growth:
  • Queen: Size data unavailable
  • Worker: ~7 mm ^[2]
  • Colony: Unknown for this species
  • Growth: Moderate
  • Development: Estimated 6-8 weeks at 25-28°C (Development time is inferred, specific data for P. tibialis is not available.)
• Antkeeping:
  • Temperature: Keep at 24-28°C, they are a tropical species.
  • Humidity: Keep the nest substrate consistently moist but not waterlogged, as an arboreal species, they benefit from some moisture ^[5].
  • Diapause: No, being a tropical species, they do not require hibernation.
  • Nesting: Arboreal nesting preference, use nests with vertical space and climbing structures. They use silk and carton for nest construction ^[5][7].
• Behavior: Generally calm and non-aggressive. As Formicinae, they defend by spraying formic acid. Arboreal by nature, so they explore vertical space. Escape risk is moderate due to medium size.
• Common Issues: arboreal nature means they need vertical space, horizontal-only nests may cause stress., tropical warmth requirements mean cold rooms can slow or stop activity., silk-nesting behavior may be disrupted in fully artificial nests, provide some substrate., wild-caught colonies may carry parasites that affect captive survival., medium size means standard escape prevention works well, no special tiny-gap concerns.

Housing and Nest Setup

Polyrhachis tibialis is an arboreal species that naturally nests in trees and uses silk to construct carton structures ^[5][7]. In captivity, you should use Y-tong (AAC) nests or naturalistic setups with vertical climbing space. Provide some soil or moist substrate so workers can create carton galleries. Include small branches or cork bark for climbing. A water test tube should always be available. These ants are medium-sized, so standard escape barriers work well, but ensure the outworld has vertical elements.

Feeding and Diet

Polyrhachis tibialis is omnivorous. You should offer a constant sugar source like sugar water or honey. For protein, provide small insects like fruit flies or mealworms 2-3 times per week. They may tend aphids or scale insects for honeydew ^[8].

Temperature and Seasonal Care

Keep the nest area at 24-28°C. They can tolerate brief drops to room temperature but prolonged cool conditions will slow brood development. No hibernation is required, maintain warm conditions year-round.

Behavior and Temperament

Workers are active and explore vertical space. As Formicinae, they defend by biting and spraying formic acid, the bite is mild and not dangerous to humans. They are not aggressive toward keepers but will defend their nest if disturbed. Escape prevention should be moderate due to their medium size.

Colony Development

Queens are likely claustral founders, but this is unconfirmed. Development from egg to worker is estimated at 6-8 weeks at optimal temperatures, based on related Polyrhachis species. Colony growth is moderate, expect several months before first workers appear.

Frequently Asked Questions

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References