Pheidole reflexans

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Paraguay and Argentina, specifically in Canindeyú, Central, and Itapúa departments. They inhabit subtropical tall forests, living in leaf litter ^[1].
• Colony Type: Colony structure is unconfirmed for Pheidole reflexans. Based on Pheidole genus patterns, colonies are likely single-queen, but no specific data exists.
• Size & Growth:
  • Queen: Size data unavailable for queens. Inferred from Pheidole genus, queens are typically ~5-7 mm.
  • Worker: Size data unavailable for workers. Inferred from Pheidole genus, minors are ~2-3 mm, majors are ~3-4 mm with enlarged heads.
  • Colony: Colony size is unknown, but typical for Pheidole genus, up to several hundred workers.
  • Growth: Moderate, inferred from tropical/subtropical distribution.
  • Development: Estimated 6-8 weeks at optimal temperatures, inferred from related Pheidole species. (Development time is estimated, specific timing for P. reflexans has not been documented.)
• Antkeeping:
  • Temperature: Keep warm, roughly 24-28°C, based on their subtropical habitat ^[1].
  • Humidity: Keep the nest substrate consistently moist but not waterlogged, as they are forest-floor ants ^[1].
  • Diapause: Diapause is unknown, but as a subtropical species, likely not required ^[1].
  • Nesting: Prefer nests with moist substrate, such as Y-tong (AAC) or plaster nests. Avoid acrylic nests.
• Behavior: These ants are generally calm and not aggressive. Primary defense is stinging, as typical for Myrmicinae ants. They are active foragers, and escape prevention is important due to their small size.
• Common Issues: high humidity management is critical, too dry and colonies desiccate, too wet and mold becomes a problem., small size makes escape prevention challenging, use fine mesh and check lid seals regularly., founding phase may be slow, queens may take time to raise first workers, patience is required., wild-caught colonies may harbor parasites that can devastate captive populations., ensure nest passages stay clear to prevent blockages by majors.

Housing and Nest Setup

You can use Y-tong (AAC) nests or plaster formicariums for Pheidole reflexans. Their small size requires tight-fitting connections and fine mesh barriers to prevent escapes. Because they are forest-floor ants, they appreciate some depth of moist substrate they can tunnel through ^[1]. A test tube setup works well for founding colonies, place the queen in a test tube with a water reservoir and cotton plug, then keep it dark and undisturbed. Once the colony reaches 30-50 workers, transition to a proper formicarium. Avoid tall, open spaces, these ants do better in compact nests with narrow chambers scaled to their body size.

Feeding and Diet

You should offer a varied diet including small seeds (millet, sesame, chia), protein sources (dead insects like fruit flies, mealworms, or bloodworms), and occasional sugar water or honey. Feed small amounts every 2-3 days and remove uneaten food to prevent mold. Fresh water should always be available.

Temperature and Humidity

Keep the nest warm at roughly 24-28°C, based on their subtropical habitat ^[1]. Use a heating cable on one side to create a temperature gradient. Keep the nest substrate consistently moist but not waterlogged, as they are forest-floor ants ^[1]. A water tube attached to the nest helps maintain humidity while providing drinking water.

Colony Development and Growth

Pheidole colonies grow through a major/minor worker system. The queen lays eggs that develop into larvae, then pupae, and finally emerge as workers. Development from egg to worker is estimated at 6-8 weeks at optimal temperature, but this is inferred from related species. Colonies may take 1-2 years to reach several hundred workers.

Handling and Temperament

These ants are generally calm and not prone to stinging. Major workers may defend the colony if threatened, but their small size makes any sting negligible to humans. They are active foragers that will explore their outworld searching for food. Always use escape prevention measures since their small size allows them to slip through gaps.

Frequently Asked Questions

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References