Pheidole aana

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Endemic to Samoa, specifically Upolu island ^[2][1]. Lives in warm, humid forest environments.
• Colony Type: Unconfirmed, no specific data on queen number or social structure.
• Size & Growth:
  • Queen: Size data unavailable, no total length measurements found. Inferred from Pheidole genus patterns to be around 6-8 mm.
  • Worker: Size data unavailable, inferred from Pheidole genus: minors ~2-3 mm, majors ~4-6 mm.
  • Colony: Up to several hundred workers at maturity, estimated from genus patterns.
  • Growth: Moderate
  • Development: Estimated 6-8 weeks at optimal tropical temperatures, based on genus patterns ^[3]. (Development time inferred from typical Pheidole genus patterns, direct observations for this species are unavailable.)
• Antkeeping:
  • Temperature: Keep at 24-28°C. As a tropical species, consistent warmth is needed ^[3].
  • Humidity: Moderate to high humidity. Keep nesting material slightly moist but not waterlogged ^[3].
  • Diapause: No, tropical species does not require hibernation or winter rest ^[3].
  • Nesting: Ground-nesting species. Use test tube setup for founding colonies. Once established, Y-tong or naturalistic setups with moist substrate work well ^[3].
• Behavior: Generally peaceful temperament. Based on its subfamily (Myrmicinae), it likely has a functional stinger, but this is not specifically documented for the species. Minor workers may flee while majors defend the nest. Escape risk is moderate, use standard barriers like Fluon.
• Common Issues: tropical species requires consistent warmth, cold temperatures can slow or stop brood development., colonies may be slow to establish initially, patience is needed during the founding phase., major workers can be clumsy in small setups, provide adequate space in the outworld., wild-caught colonies from Samoa may have parasites or diseases that affect captive survival., limited availability since this species is rarely kept in captivity.

Housing and Nest Setup

Pheidole aana can be started in a simple test tube setup. Fill a test tube one-third with water, plug with cotton, and place the queen in the dark. Once the colony reaches 20-30 workers, you can move them to a small formicarium. Y-tong nests work well for Pheidole because they provide appropriately sized chambers. You can also use a naturalistic setup with a container filled with moist soil or sand. Provide a separate outworld for foraging. Since majors are larger than minors, ensure passages are wide enough for both castes to move freely ^[3].

Feeding and Diet

Pheidole ants are omnivorous with a preference for protein. In captivity, feed them small insects like fruit flies, pinhead crickets, or mealworms. They also accept protein jelly, boiled eggs, or other protein sources. Sugar water, honey, or sucrose solutions should be provided regularly for carbohydrates. Seeds are not required in captivity despite the genus being known as harvesters, they readily accept protein instead. Feed small amounts every 2-3 days and remove uneaten food to prevent mold ^[3].

Temperature and Seasonal Care

As a tropical species from Samoa, Pheidole aana needs warm conditions year-round. Keep the nest at 24-28°C (75-82°F). Temperature below 22°C can slow brood development significantly. A small heating cable on one side of the nest can create a gentle gradient. Room temperature in heated homes is often sufficient. Do not attempt hibernation, this species has no diapause requirement. Maintain consistent warmth and humidity throughout the year. Avoid placing the nest near air conditioning vents or cold windows ^[3].

Colony Development and Growth

Pheidole colonies grow through two distinct worker castes. The queen lays eggs which develop into larvae and then pupae. First workers (nanitics) are typically smaller but will begin foraging to support the colony. Once the colony is established, larger major workers (soldiers) will begin appearing. Majors have enlarged heads and mandibles for defense and processing food. Growth is moderate, expect 6-12 months to reach 50 workers, and 2-3 years to reach several hundred. Patience is key with this species ^[3].

Behavior and Defense

Pheidole aana is not aggressive toward keepers. Based on its subfamily (Myrmicinae), it likely has a functional stinger, but this is not specifically documented for the species. When threatened, minor workers will flee while major workers may bite defensively, but the bite is not harmful to humans. The majors use their large heads to block nest entrances and defend against predators. Workers are active foragers that search the outworld for food. They store food in their gasters to share with nestmates through trophallaxis. Standard escape prevention with Fluon or vaseline on container edges is sufficient ^[3].

Frequently Asked Questions

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References