Pheidole roushae

Quick Summary

• Difficulty: Easy
• Origin & Habitat: Native to the Neotropical region: Mexico, Guatemala, Belize, and Honduras. Found in shaded coffee plantations and tropical forest edges at elevations of 980-1600 m ^[2][3].
• Colony Type: Unknown based on available literature. Most Pheidole species are monogyne (single‑queen colonies), but this is unconfirmed for P. roushae.
• Size & Growth:
  • Queen: Approximately 8-10 mm, inferred from typical Pheidole queen sizes
  • Worker: Major workers: approximately 4-5 mm, minor workers: approximately 2-3 mm, inferred from related Pheidole species
  • Colony: Unknown based on available literature, typical Pheidole colonies can reach several hundred to a few thousand workers.
  • Growth: Moderate (estimated based on genus patterns)
  • Development: Estimated 6-8 weeks at warm temperatures, based on typical Pheidole development (Development speed depends on temperature. Keep within 22-26°C for steady growth.)
• Antkeeping:
  • Temperature: 22-26°C, this matches their subtropical highland origin. Avoid temperatures above 30°C. A gentle gradient with a heating cable is optional if room temperature is below this range ^[2].
  • Humidity: Keep the nest substrate moderately moist but not waterlogged. Their shaded coffee plantation habitat suggests damp conditions with good drainage ^[2].
  • Diapause: Unknown if strict diapause is required. Based on the subtropical origin, a brief cool period in winter (15-18°C) may be safe but is likely not mandatory.
  • Nesting: Y‑tong (AAC) or plaster nests with small chambers work well. Use fine mesh (≤0.5 mm) on all connections, the tiny minor workers can slip through standard barriers. Avoid acrylic nests.
• Behavior: A peaceful species focused on foraging and brood care. Major workers have large mandibles for seed processing and defense, but they rarely bite keepers. Minor workers are very small and can escape through tiny gaps, so escape‑proof setups are critical. Temperament is typical of Pheidole: generally calm and non‑aggressive.
• Common Issues: escape prevention is critical, minor workers are very small (body length ~2 mm) and can squeeze through standard mesh, colonies may be slow to establish initially, patience is needed during the founding phase, test tube setups must have tight‑fitting barriers to prevent escape through capillary gaps, overheating can be fatal, avoid temperatures above 30°C, wild‑caught colonies may carry parasites, quarantine new colonies before introducing to your setup

Nest Preferences

In the wild, Pheidole roushae nests in soil in shaded, humid habitats like coffee plantations and tropical forest edges ^[2]. In captivity, they do well in Y‑tong (AAC) or plaster nests with small chambers. Because minor workers are very small (body ~2 mm), all connections between nest and outworld must have fine mesh (≤0.5 mm) or fluon barriers. Test tube setups work for founding, but monitor for escape. They prefer some vertical space as the colony grows.

Feeding and Diet

Pheidole roushae is an omnivore. Offer small insects (fruit flies, pinhead crickets, mealworms) for protein, and provide sugar water or honey water. They likely tend aphids for honeydew in the wild, so sugar sources are readily accepted ^[2]. Feed protein 2-3 times per week and keep sugar water constantly available. Remove uneaten prey after 24 hours to prevent mold.

Temperature and Care

Keep your colony at 22-26°C, matching their subtropical highland origin ^[3]. They can tolerate cooler temps (down to ~18°C) but become less active. Never exceed 30°C. If room temperature is below 22°C, use a heating cable on one side to create a gradient. Development speeds up within the optimal range.

Behavior and Temperament

This species is calm and generally non‑aggressive, typical of many Pheidole. Major workers have large heads with powerful mandibles for seed processing and defense, but they rarely bite keepers. Minor workers handle most foraging and brood care. Activity is moderate, they become more active when food is offered. The main concern is their tiny size: minor workers can escape through gaps that other ants cannot. Always use fine mesh and fluon on potential escape points ^[2].

Colony Founding

Founding behavior is unconfirmed for this species. Based on typical Pheidole patterns, the queen likely seals herself in a chamber and raises the first workers without feeding, but this is an inference. If claustral, do not disturb the queen during the first weeks. The first workers (nanitics) may take 6-8 weeks to emerge at optimal temperatures. After that, gradually introduce food and a regular schedule.

Frequently Asked Questions

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References