Polyrhachis storki

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Southeast Asia, Peninsular Malaysia, Borneo, and Sulawesi. Inhabits tropical forests ranging from lowland to montane areas, with specimens collected at elevations from 60m to 860m ^[1][4].
• Colony Type: Colony structure is unconfirmed. Only known from worker caste, queen caste has not been described ^[2].
• Size & Growth:
  • Queen: Unknown, no data available
  • Worker: 6.4-7.0 mm total length ^[1]
  • Colony: Unknown, no colony size data available
  • Growth: Unknown, no development data available
  • Development: Estimated 6-10 weeks based on related Polyrhachis species (Development timeline is inferred from genus patterns, no specific data for P. storki.)
• Antkeeping:
  • Temperature: Keep warm, roughly 24-28°C, based on tropical habitat ^[1]. Provide a temperature gradient for self-regulation.
  • Humidity: Keep nest substrate consistently moist but not waterlogged, with some drier areas available.
  • Diapause: Unknown, tropical species from Southeast Asia, likely no diapause required.
  • Nesting: Use Y-tong (AAC) or plaster nests that retain moisture. Ground-nesting setup is suitable, with a dark, quiet location.
• Behavior: Polyrhachis storki is a relatively calm species. As a Formicinae ant, it lacks a functional sting and instead sprays formic acid for defense. Workers are moderately active foragers. Escape prevention should be moderate due to their medium size.
• Common Issues: limited availability, this is a rare species in the antkeeping hobby, no queen description means wild-caught colonies are extremely uncommon, growth rate is unknown, which can make colony management challenging, tropical humidity requirements mean they are prone to mold in poorly ventilated setups, lack of documented captive care means keepers must rely on genus-level husbandry

Housing and Nest Setup

Use Y-tong (AAC) or plaster nests that maintain humidity for P. storki. These nests allow observation and moisture control. Since this species is ground-nesting from tropical forests, keep the nest dark and quiet. Provide an outworld area roughly 2-3 times the size of the nest for foraging. Maintain humidity with a water tube or cotton wick system, ensuring adequate ventilation to prevent mold ^[1].

Feeding and Diet

Offer sugar water or honey as a constant carbohydrate source. Provide protein such as small insects (e.g., fruit flies, crickets) 2-3 times per week, removing uneaten prey after 24 hours. Fresh water should always be available. Feeding habits are inferred from related Polyrhachis species.

Temperature and Humidity Requirements

Maintain temperatures around 24-28°C, based on the species' tropical habitat ^[1]. Humidity should be managed by keeping the nest substrate moist but not waterlogged. Avoid prolonged cool periods or drafts.

Handling and Temperament

P. storki is generally calm. Use gentle methods like tapping or blowing to move workers, avoiding aggressive shaking. As a Formicinae ant, it defends by spraying formic acid, not stinging.

Colony Establishment and Growth

Colony establishment is challenging due to limited data. If you obtain a colony, maintain stable conditions and avoid disturbances during founding. Growth rates are unknown and may vary based on care.

Frequently Asked Questions

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References