Pheidole acamata

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Wet forest habitats in Central America, Nicaragua, Guatemala, Honduras, and southern Mexico (Chiapas). Found from sea level to 1000m elevation ^[3][2].
• Colony Type: Colony structure is unconfirmed, the natural nest has never been observed. Based on typical Pheidole patterns, likely single-queen (monogyne) colonies with major and minor worker castes ^[3].
• Size & Growth:
  • Queen: size data unavailable
  • Worker: size data unavailable, inferred from Pheidole genus to be small (~2-5mm)
  • Colony: Up to several thousand workers, estimated based on genus patterns ^[3].
  • Growth: Moderate
  • Development: Estimated 6-8 weeks at optimal temperature based on genus-level data for Pheidole species ^[3]. (Development time is inferred from related species, direct measurements for P. acamata are not available.)
• Antkeeping:
  • Temperature: Keep warm and stable, roughly 22-25°C, as they are from wet forests ^[3][2].
  • Humidity: Keep substrate consistently moist but not waterlogged, based on their wet forest habitat ^[3][2].
  • Diapause: Unknown, no specific data on overwintering requirements ^[3][2].
  • Nesting: Natural nest is unknown ^[3]. In captivity, use test tube setups for founding, and once established, Y-tong nests, plaster nests, or naturalistic setups with moist substrate. They are epigaeic foragers, so provide an outworld.
• Behavior: This species is active and visible, with workers commonly foraging on the surface. They are recruitment specialists, when food is found, they quickly recruit both major and minor workers. Majors help process larger food items. They are not particularly aggressive toward keepers but will defend the nest if threatened. Escape risk is high due to small size, ensure secure lids on outworlds.
• Common Issues: humidity management is critical, being from wet forests, they suffer in dry conditions ^[3]., colonies may be slow to establish initially due to unknown founding behavior., major workers may be confused with other Pheidole species if misidentified, ensure you have the correct species., wild-caught colonies may contain parasites that can devastate captive colonies.

Housing and Nest Setup

For founding colonies, a simple test tube setup works well. Use a test tube with a water reservoir at one end, stopped with a cotton plug, providing humidity through the tube. Place the tube in a dark container to simulate a nest chamber. Once the colony has workers, you can move them to a proper formicarium. Y-tong nests, plaster nests, or naturalistic setups with moist soil work well for Pheidole ^[3]. Since this is an epigaeic species, they will readily use an outworld connected to the nest. Make sure the outworld has a secure lid due to high escape risk.

Feeding and Diet

Pheidole acamata is an omnivorous forager commonly attracted to baits in the wild ^[3]. In captivity, they readily accept protein sources like small insects (fruit flies, small crickets, mealworms) and sugar water, honey, or sugar syrup. They are recruitment specialists, when one worker finds food, it quickly brings others. Feed them small prey items 2-3 times per week, and keep a constant sugar water source available. Remove uneaten prey after 24-48 hours to prevent mold.

Temperature and Humidity

As a wet forest species from Central America, P. acamata prefers warm and humid conditions. Keep the nest area at 22-25°C with a gentle gradient so workers can regulate their temperature ^[3][2]. Humidity should be moderate to high, the substrate should feel consistently moist but never waterlogged. A water tube attached to the nest provides drinking water and helps maintain humidity.

Colony Development

This species has dimorphic workers, majors and minors. The major workers develop from the same larval stage as minors but receive more food, a phenomenon called 'bifurcated development.' Majors have distinctive large heads and help with food processing and nest defense. The colony will start with just a queen and brood. After the first workers (nanitics) emerge, the colony grows gradually. Expect moderate growth, full colonies may reach several thousand workers over 1-2 years under good conditions. ^[3][1]

Behavior and Foraging

Pheidole acamata is an epigaeic forager, meaning it actively forages on the ground surface rather than in trees or underground ^[3][2]. They are commonly found at baits in the wild, showing they readily discover and recruit to food sources. When a worker finds something good, it lays a pheromone trail back to the nest, and other workers follow. Both major and minor workers participate in foraging, majors help tackle larger prey items. They are not particularly aggressive but will bite if the nest is disturbed.

Frequently Asked Questions

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References