Pheidole tenebricosa

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Borneo, Indonesia, Malaysia, and Philippines, found in well-developed forests at 1500-1800m altitude, nesting in rotting wood on the ground ^[1].
• Colony Type: Based on Pheidole patterns, likely single-queen colonies (monogyne). Colonies have major and minor worker castes, with majors defending the nest and minors handling daily tasks.
• Size & Growth:
  • Queen: Size data unavailable, no total length measurements provided in research
  • Worker: Major workers: 2.5-3.0 mm, Minor workers: 1.5-1.8 mm ^[1]
  • Colony: Estimated up to several hundred workers, inferred from typical Pheidole colony sizes
  • Growth: Moderate, based on genus-level development patterns
  • Development: Estimated 6-10 weeks at optimal temperature, inferred from related Pheidole species ^[1] (Development time may vary based on temperature and colony conditions. Major workers appear later in colony growth.)
• Antkeeping:
  • Temperature: Keep in cool conditions, roughly 22-26°C, based on their mountain habitat ^[1]. Avoid temperatures above 28°C.
  • Humidity: Keep nest substrate consistently moist but not waterlogged, based on forest floor habitat ^[1]. Provide a water tube for evaporation.
  • Diapause: Not required, inferred from tropical mountain climate with consistent temperatures ^[1].
  • Nesting: Use setups with rotting wood or similar materials, such as Y-tong or plaster nests with wood inclusions ^[1].
• Behavior: Generally peaceful, but majors defend the nest using their large heads. They are seed-storing and accept protein foods like small insects. Escape risk is moderate due to small size, use fine mesh barriers ^[1]. They have a sting typical of Myrmicinae but rarely use it.
• Common Issues: high humidity requirements can lead to mold if ventilation is poor, balance is key, small minor workers can escape through standard test tube cotton, use fine mesh barriers, slow colony growth may frustrate beginners, major workers take months to appear, mountain forest origins mean they don't tolerate heat well, keep away from direct heat sources, wild-caught colonies may have parasites that are difficult to detect

Housing and Nest Setup

You can use naturalistic setups that mimic rotting wood habitats. A Y-tong nest with added wood pieces or a plaster nest works well. Maintain high humidity with good ventilation to prevent mold. Test tubes can be used but monitor moisture carefully, wrap the water section with dark tape to create a humid microclimate. Add small wood fragments or cork to the nest to help ants feel at home ^[1].

Feeding and Diet

Offer small seeds like millet constantly, as they store seeds in nests ^[1]. Provide protein sources such as fruit flies or mealworms 2-3 times per week. Sugar water can be offered occasionally. Remove uneaten seeds to prevent mold. Major workers process larger food items for the colony ^[1].

Temperature and Humidity Management

Keep temperatures around 22-26°C based on their mountain habitat ^[1]. Avoid overheating above 28°C. Humidity should be high, keep nest substrate moist but not waterlogged, using a water tube for evaporation ^[1]. Good ventilation is essential to prevent mold.

Colony Development and Castes

Colonies have major and minor worker castes. Minor workers (1.5-1.8 mm) handle foraging and brood care, while majors (2.5-3.0 mm) defend and process food ^[1]. First workers appear in 6-10 weeks, with majors developing later as the colony grows. Be patient, colony development takes time ^[1].

Frequently Asked Questions

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References