Pheidole caffra

Pheidole caffra - "Southern House ant"

Pheidole caffra is a dimorphic ant species native to the Afrotropical region, found across central and southern Africa from Nigeria to South Africa. As with all Pheidole species, they have two worker castes: large major workers (soldiers) with oversized heads for seed-crushing, and smaller minor workers that handle most foraging and brood care. This species nests in soil under rocks or in rotting wood in woodland habitats. They are known to host the beetle Paussus anxius in their nests, a specialized myrmecophile that lives among the ants ^[1][2]. The species belongs to the speculifera group within the Afrotropical Pheidole. Five subspecies are recognized, including P. c. abyssinica and P. c. amoena.

Quick Summary

• Difficulty: Easy
• Origin & Habitat: Afrotropical region, Nigeria, South Africa, Tanzania, Democratic Republic of Congo, Eritrea, and surrounding countries. Found in woodland habitats, typically nesting in soil under rocks or as foragers ^[3].
• Colony Type: Monogyne, single queen colonies. Pheidole species typically form single-queen colonies with major and minor worker castes.
  • Colony: Monogyne
  • Founding: Claustral
• Size & Growth:
  • Queen: Estimated 7-9mm based on typical Pheidole genus patterns
  • Worker: Minor workers 2-3mm, major workers 4-6mm, typical for Pheidole species in the speculifera group ^[3]
  • Colony: Estimated up to several thousand workers based on typical Pheidole colony growth
  • Growth: Moderate, Pheidole colonies typically grow steadily but not rapidly
  • Development: Estimated 6-8 weeks at optimal tropical temperatures (25-28°C) (Development time inferred from typical Pheidole genus patterns, actual timeline may vary)
• Antkeeping:
  • Temperature: Keep at 24-28°C, these are tropical ants from Africa. A heating cable on one side of the nest creates a suitable gradient
  • Humidity: Moderate to high humidity, they nest in soil in woodland areas. Keep the nest substrate moist but not waterlogged. Provide a water tube for drinking water
  • Diapause: No, as a tropical species, they do not require hibernation. Keep at stable warm temperatures year-round
  • Nesting: Y-tong (AAC) nests or plaster nests work well. They prefer nested spaces with some moisture retention. Test tubes can work for founding colonies. Provide soil or sand for them to dig in if using a naturalistic setup
• Behavior: Pheidole caffra is a typical Pheidole species, generally non-aggressive toward keepers but will defend the nest if threatened. They are seed-harvesters and omnivores, collecting seeds and small insects. Major workers use their large heads to crush seeds. They are active foragers and will discover food quickly. Escape risk is moderate, they are not particularly small but use fine mesh barriers anyway. They are not known to be particularly aggressive or to sting.
• Common Issues: colonies may decline if kept too cold, maintain warm temperatures, poor escape prevention can lead to escapes despite their moderate size, overfeeding can lead to mold in nest setups, remove uneaten food promptly, founding colonies are vulnerable, queens need quiet, dark locations

Housing and Nest Setup

Pheidole caffra can be housed in various setups depending on colony size. For founding colonies, a simple test tube setup works well, the queen will seal herself in a chamber and raise her first brood there. As the colony grows, you can move them to a Y-tong (AAC) nest or a plaster formicarium. These ants prefer some moisture in their nest, so either a water reservoir on the Y-tong or occasional misting of a plaster nest works. They are not particularly demanding about nest architecture, typical chambers and tunnels work fine. For a naturalistic setup, provide a container filled with soil or sand and place a flat stone on top for them to nest under. Make sure any setup has excellent escape prevention, while not tiny, they will find gaps in equipment. ^[3]

Feeding and Diet

Pheidole caffra is an omnivorous seed-harvester. In captivity, they readily accept a variety of foods: seeds (millet, chia, flax), protein sources (mealworms, crickets, bloodworms), and sugar (honey water, sugar water). The major workers use their enlarged heads to crack open seeds, so provide small seeds they can process. Feed protein 2-3 times per week and keep a constant sugar water source available. Remove any uneaten food after 24-48 hours to prevent mold. They are generalists, so experimentation with different foods is encouraged, most Pheidole species accept a wide variety of foods.

Temperature and Seasonal Care

As a tropical African species, Pheidole caffra requires warm temperatures year-round. Keep the nest area at 24-28°C (75-82°F). A small heating cable or heat mat on one side of the nest can create a temperature gradient, allowing the ants to self-regulate. Place the heating element on top of the nest to avoid drying it out. They do not require hibernation or cooling periods, maintaining consistent warm temperatures is key. Room temperature in most homes (around 22-24°C) is acceptable, but cooler temperatures will slow growth and may weaken the colony. Avoid temperature fluctuations and drafts.

Colony Growth and Development

Pheidole colonies grow through the production of major workers. The first workers (nanitics) are typically smaller, and as the colony matures, you will see more major workers appearing. The colony will grow from a handful of workers to several hundred over the first year, then continue expanding. Major workers serve as seed-crushers and defenders, while minors handle most daily tasks. A mature colony can contain thousands of workers with a significant proportion being majors. The queen can live for many years, with Pheidole queens often living 10-15 years in captivity.

Behavior and Temperament

This species is generally calm and manageable in captivity. They are not aggressive toward keepers and rarely attempt to sting. When disturbed, they may send out major workers to defend the nest, but their response is typically mild. Foragers are active and will quickly discover food sources. They use chemical trails to recruit nestmates to food. The presence of major workers is one of the most entertaining aspects of keeping Pheidole, watching them crack seeds with their impressive head muscles is fascinating. They are diurnal and will show peak activity during daylight hours.

Frequently Asked Questions

References