Platythyrea conradti

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Arboreal ant from tropical West and Central Africa (Angola, Benin, Cameroon, DRC, Equatorial Guinea, Gabon, Ghana, Guinea, Ivory Coast, Nigeria) ^[3]. Nests in hollow branches of living trees, particularly Pancovia bijuga, at heights of 0.5–2 m ^[1][5].
• Colony Type: Monogyne, single fertile ergatoid queen. Workers and queen form a dominance hierarchy through aggressive interactions ^[4][7]. No gamergates (fertile workers) are present ^[3].
• Size & Growth:
  • Queen: ~15 mm (similar to workers, but gaster is larger) ^[3]
  • Worker: ~15 mm ^[1]
  • Colony: Up to 500 workers ^[2][1], typical wild colonies have ~100 workers ^[3].
  • Growth: Moderate
  • Development: 6–10 weeks (estimated based on related Ponerinae, direct data unavailable) (Keep at tropical temperatures (24–28°C) for best development.)
• Antkeeping:
  • Temperature: Tropical species – keep at 24–28°C. They are active year-round. (Temperature not directly studied, inferred from native habitat.)
  • Humidity: High but not constant wetness. The nest substrate should be moist but well-drained. In the dry season, workers plug the nest entrance, indicating they can handle some drying but prefer humidity. Provide a water source in the outworld ^[5].
  • Diapause: No – tropical species, active year-round ^[5].
  • Nesting: Arboreal setup is essential. Use a formicarium with large chambers (e.g., Y-tong, plaster, or natural cork). Provide vertical space and multiple chambers connected by wide passages. A deep substrate layer or cork slabs works well. Avoid acrylic nests – they don't hold humidity for this species.
• Behavior: Solitary predators with a powerful sting ^[2]. They hunt at dawn and dusk ^[2]. Workers are territorial and will attack other ants using a threat display (crouching, antennae folded back) backed by volatile secretions ^[2]. Alien conspecifics are fiercely attacked ^[1]. They can climb smooth surfaces, so use a barrier like fluon or PTFE on the rims of outworlds. Handle with care – their sting can penetrate human skin ^[2].
• Common Issues: dry conditions causing nest abandonment or colony decline., insufficient live prey – they need protein from arthropods., mold due to overwatering – balance moisture with ventilation., handling injuries from stings., colony may not grow if given insufficient vertical space.

Housing and Nest Setup

Platythyrea conradti is arboreal and needs a setup that mimics tree cavities. Use a large formicarium with wide chambers (e.g., Y-tong or plaster). Provide vertical space using cork slabs or hollow branches. This species nests 0.5–2 m above ground in nature ^[1][5], so consider elevating the nest in the outworld. The nest entrance should be a small opening, in the wild they plug it with debris in the dry season ^[5]. Maintain high humidity but allow ventilation to prevent mold. The outworld should have climbing structures like twigs and leaves.

Feeding and Diet

Offer a variety of live prey: crickets, roaches, mealworms, termites. They are solitary hunters ^[2], drop prey near the nest. They can subdue prey up to 30 times their weight ^[2]. Also provide sugar water or honey – workers collect sugary liquids using surface tension, carrying them under the head and thorax ^[2]. Feed protein 2–3 times per week, sugar water always available.

Temperature and Seasonal Care

Keep at 24–28°C, typical for tropical lowland forests. No diapause. Activity may decrease during winter if your home is cooler/drier, but they remain active. Provide a water source. ^[5]

Behavior and Defense

Highly territorial. Workers hunt alone, using a quick ventral sting to paralyze prey ^[8][2]. They also use a threat display against other ants: crouching with mandibles open and antennae folded back, releasing repellent volatiles ^[2]. Within the colony, a dominance hierarchy exists, the queen is top-ranked ^[4][7]. After the queen dies, high-ranking workers lay male eggs ^[7]. They are aggressive to alien conspecifics but tolerate Strumigenys maynei nestmates ^[1]. Their sting is painful and can break human skin.

Colony Growth and Reproduction

Colonies start by fission: an ergatoid queen walks with a group of workers to a new site ^[1]. The queen is wingless and morphologically similar to workers but has a larger gaster and 18–20 ovarioles ^[3]. Colonies grow slowly – expect the first workers several weeks after founding. Mature colonies reach up to 500 workers ^[2][1]. No alate queens are produced, reproduction is entirely through fission.

Frequently Asked Questions

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References