Pheidole asperithorax

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Amazon basin in South America, including Peru ^[1], Colombia ^[3], and other countries ^[2]. They inhabit terra firme and seasonally flooded rainforest, nesting in rotting wood and bromeliads ^[2].
• Colony Type: Unconfirmed, no specific data on queen number for this species.
• Size & Growth:
  • Queen: Size data unavailable, inferred from Pheidole genus that queens are typically 5-7mm long.
  • Worker: Size data unavailable, minor and major workers are small, but exact body length not measured.
  • Colony: Unknown for this species.
  • Growth: Moderate, inferred from related Pheidole species.
  • Development: Estimated 6-8 weeks at optimal temperatures, inferred from genus patterns. (Development time is inferred, no direct measurements available for this species.)
• Antkeeping:
  • Temperature: Keep at 24-28°C, mimicking tropical conditions, inferred from habitat ^[2].
  • Humidity: Keep nest substrate consistently moist but not waterlogged, inferred from rainforest habitat ^[2].
  • Diapause: No, tropical species do not require hibernation ^[2].
  • Nesting: Prefers wood-based nests such as cork or Y-tong with wooden inserts, from AntWiki observations ^[2].
• Behavior: Typical Pheidole behavior: majors defend the nest with strong mandibles, minors handle foraging and brood care. Not aggressive towards keepers, but minors are small and can escape through gaps ^[2].
• Common Issues: tropical species requires consistent warmth, cold can stress or kill colonies., arboreal nesting means they need wood-based materials, plain acrylic may not be accepted., small workers can escape if nest gaps are not sealed., wild-caught colonies may have parasites., slow founding phase, queens may take time to lay eggs.

Nest Preferences and Housing

Pheidole asperithorax naturally nests in rotting wood, under bark, and in bromeliads ^[2]. In captivity, they do best with wood-based nesting options such as cork nests or Y-tong nests with wooden inserts ^[2]. Avoid plain acrylic nests, as these ants prefer woody materials ^[2]. The nest should be kept humid but not wet, with condensation visible but no standing water.

Feeding and Diet

As members of the tribe Attini, Pheidole asperithorax are likely omnivorous with a preference for protein-rich foods. In captivity, offer small live insects, protein paste or gel, and sugar sources like honey water ^[2]. Feed protein 2-3 times per week and keep sugar water available at all times.

Temperature and Humidity Requirements

Being a tropical Amazon species, Pheidole asperithorax requires warm conditions year-round. Maintain temperatures between 24-28°C with minimal fluctuation ^[2]. Humidity should be moderate to high, keep the nest substrate consistently moist but not saturated ^[2].

Behavior and Colony Structure

Pheidole asperithorax exhibits the typical Pheidole caste system with distinct major and minor workers. Major workers defend the colony, while minors handle daily tasks ^[2]. Colonies are likely monogyne, but this is unconfirmed for this species.

Growth and Development

Development from egg to worker takes approximately 6-8 weeks at optimal tropical temperatures, based on patterns in related Pheidole species ^[2]. Colony growth is moderate, with no specific data on size for this species.

Frequently Asked Questions

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References