Pheidole calimana

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Pacific lowland rainforest of Colombia, specifically the Bajo Calima region in Valle del Cauca department. They nest in rotten sticks and dead wood on the forest floor ^[1][2].
• Colony Type: Unconfirmed, based on Pheidole genus patterns, likely monogyne (single queen colonies).
• Size & Growth:
  • Queen: Size unknown, inferred from Pheidole genus (~6 mm)
  • Worker: Size unknown, inferred from Pheidole genus to be small (2-4 mm total length)
  • Colony: Unknown, no data on maximum colony size
  • Growth: Unknown, likely moderate based on genus patterns
  • Development: Estimated 6-8 weeks based on typical Pheidole development ^[3] (Development time is unconfirmed for this species. Most Pheidole species develop from egg to worker in 6-8 weeks at optimal temperatures.)
• Antkeeping:
  • Temperature: Keep warm at 24-28°C, based on tropical species patterns ^[3].
  • Humidity: Keep substrate moderately moist, mimicking rainforest conditions ^[3].
  • Diapause: Unknown, being a tropical species, likely no hibernation required.
  • Nesting: Provide rotting wood pieces, cork bark, or a Y-tong/plaster nest with wood-like texture, based on natural nesting preferences ^[1][3].
• Behavior: These ants are active foragers. Pheidole species typically have major workers that assist with colony defense. They are not aggressive toward keepers but may bite if threatened. Their very small size means escape prevention must be excellent, they can squeeze through small gaps. Expect active foraging behavior, particularly for protein sources.
• Common Issues: escape prevention is critical due to their very small size, use fine mesh and tight-fitting lids., humidity control can be tricky, too wet causes mold, too dry causes brood death., wild-caught colonies may harbor parasites that can decimate the colony in captivity., slow growth can lead to keeper impatience and overfeeding, which causes mold problems., rotten wood nesting substrate can develop mold if not properly managed.

Nest Preferences and Housing

Pheidole calimana naturally nests in rotten sticks and dead wood on the rainforest floor ^[1]. For captive care, you can use a Y-tong nest with narrow chambers, or a plaster nest with pieces of rotting wood. Test tube setups with cork or wood shelter also work. Ensure the nest material can hold some moisture ^[3].

Feeding and Diet

Pheidole species are generalist omnivores that readily accept both protein and carbohydrate sources. Offer protein foods such as small insects, and sugar sources like honey water. Feed every 2-3 days, removing uneaten prey to prevent mold. A constant supply of sugar water is recommended. Because of their very small size, portion sizes should be tiny ^[3].

Temperature and Seasonal Care

As a tropical lowland rainforest species from Colombia, Pheidole calimana requires warm conditions. Maintain nest temperatures between 24-28°C. A heating cable placed on one side of the nest creates a gradient allowing ants to self-regulate. Unlike temperate species, they do not require a true hibernation period ^[3].

Behavior and Colony Dynamics

Pheidole calimana exhibits the typical Pheidole caste system with distinct minor and major workers. Minor workers are the foragers and care for brood, while major workers assist with food processing and colony defense. Colonies likely grow gradually, expect slow but steady growth. Workers are active foragers that will emerge quickly when food is introduced. They are not particularly aggressive but may bite if the nest is disturbed ^[2][3].

Frequently Asked Questions

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References