Pheidole magrettii

Quick Summary

• Difficulty: Easy
• Origin & Habitat: Tropical Southeast Asia, including Indonesia (Java), Malaysia, Singapore, and Thailand (Ranong: Klong Naka) ^[2][1]. Inhabits tropical forest environments.
• Colony Type: Based on Pheidole patterns, likely monogyne (single-queen colonies).
• Size & Growth:
  • Queen: Size data unavailable, no total length measurements in research context.
  • Worker: Major workers 3.67-4 mm, minor workers about 2 mm ^[3]
  • Colony: Up to several thousand workers estimated based on typical Pheidole growth patterns ^[1]
  • Growth: Moderate, typical for tropical Pheidole species
  • Development: Estimated 5-8 weeks at tropical temperatures ^[1] (Development time inferred from typical Pheidole genus patterns. Warmer temperatures accelerate development.)
• Antkeeping:
  • Temperature: Keep warm, roughly 24-28°C, as this species is from tropical Southeast Asia ^[2][1]. Use a heating cable to create a gentle gradient.
  • Humidity: Keep substrate consistently moist but not waterlogged, based on tropical habitat ^[1]. Mist occasionally and provide a water tube.
  • Diapause: No, tropical species from Southeast Asia do not require hibernation ^[2]. Activity may slow in cooler periods.
  • Nesting: Adapts to Y-tong (AAC), plaster, or test tube nests. Provide moist brood chambers and a dry outworld ^[1].
• Behavior: Generally peaceful and non-aggressive. Major workers process seeds with enlarged heads. Minor workers are tiny and can escape through small gaps, so escape prevention is critical.
• Common Issues: escape prevention is critical, minor workers are tiny and can squeeze through standard barrier gaps, overheating can stress colonies, keep temperatures stable and below 30°C, mold can develop if substrate stays too wet, ensure proper ventilation, colonies may abandon chambers that become too dry, monitor moisture levels, wild-caught colonies may contain parasites, quarantine and observe new colonies

Housing and Nest Setup

Pheidole magrettii adapts well to various captive setups. Y-tong (AAC) nests work well because they provide dark, humid chambers ^[1]. Plaster nests with water channels maintain consistent humidity. Test tube setups are suitable for founding colonies, use a second tube as a water reservoir. Maintain moisture in the brood area and provide a dry outworld for foraging. Connect the nest to an outworld at least 10cm away to prevent mold. Use fluon on rim edges to prevent escapes ^[1].

Feeding and Diet

Pheidole magrettii is granivorous, collecting and processing seeds, but also accepts protein. Offer seeds like millet, chia, or bird seed, and protein from fruit flies, crickets, or mealworms. Provide sugar sources like honey water. Feed seeds continuously and protein 2-3 times per week. Remove uneaten food to prevent mold ^[1].

Temperature and Humidity

As a tropical species, keep the nest area at 24-28°C ^[2][1]. A heating cable on top creates a gentle gradient. Humidity should be moderate to high, keep substrate damp but not waterlogged ^[1]. Avoid temperatures above 32°C or sudden drops.

Colony Growth and Development

A newly mated queen may seal herself in a chamber and lay eggs. After first workers emerge, the colony grows. Expect 50-100 workers within 6-12 months under good conditions. Colonies can reach several thousand workers over years ^[1].

Escape Prevention

Minor workers are about 2mm and can squeeze through small gaps. Apply fluon to all rim edges and connection points. Check for gaps as small as 1mm. Use fine mesh on ventilation holes. Inspect setups daily during early weeks ^[1].

Frequently Asked Questions

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References