Strumigenys spathoda

Quick Summary

• Difficulty: Hard
• Origin & Habitat: West African rainforests, found in Cameroun, Gabon, Ghana, Ivory Coast, and Togo. They live in leaf litter in humid rainforest environments at elevations around 375 m ^[2][1].
• Colony Type: Unknown. No data on colony structure or queen number exists in available literature.
• Size & Growth:
  • Queen: Unconfirmed, the queen has not been described in available literature
  • Worker: 2.0-2.1 mm ^[1]
  • Colony: Unknown. No published data on colony size.
  • Growth: Unknown. No published data on growth rate.
  • Development: Unknown. No development data is available. (All development data is currently unknown for this species.)
• Antkeeping:
  • Temperature: Likely warm and stable, roughly 24-26 °C, based on their tropical rainforest origin ^[2]. Avoid drops below 22 °C.
  • Humidity: High humidity, keep the nest substrate consistently moist but not waterlogged, matching the leaf-litter habitat ^[1].
  • Diapause: Not required. Being from tropical West Africa, they need consistent warmth year-round.
  • Nesting: Provide tight, narrow chambers scaled to their tiny 2 mm body. Y-tong (AAC) or plaster nests with small cells work well. The preferred nest type in the wild is unconfirmed.
• Behavior: Shy and slow-moving. They use their short but powerful mandibles to capture tiny prey. They have a functional stinger (typical for Myrmicinae) but it's too small to be a problem for humans. Escape prevention is critical, at 2 mm they can slip through tiny gaps. Use fine mesh (below 0.5 mm) and seal all connections.

Housing and Escape Prevention

Because Strumigenys spathoda workers are only 2 mm long, escape prevention is your biggest challenge. These tiny ants can squeeze through gaps that seem impossible. Use fine mesh (at most 0.5 mm) on any ventilation holes, and check all connections between the nest and outworld. Test tube setups work but need tight-fitting cotton or rubber stoppers, standard cotton batting may be too loose. A Y-tong (AAC) nest with narrow, low chambers scaled to their size is ideal. The foraging area should be shallow since these small ants struggle to navigate tall spaces. Apply fluon or similar barrier around the outworld edges to prevent escapes ^[1].

Feeding and Diet

Strumigenys ants are specialized predators of tiny soil invertebrates. In the wild, they likely hunt springtails, mites, and other micro-arthropods. In captivity, offer small live prey such as springtails, fruit flies, and tiny crickets. Protein is essential for brood development. Sugar acceptance is unknown, you can offer a drop of honey or sugar water occasionally, but don't rely on it as a primary food. Feed small amounts 2-3 times per week, removing uneaten prey after 24 hours to prevent mold. The key is providing prey small enough for their tiny 2 mm workers to handle ^[1].

Temperature and Humidity

Being from West African rainforests, these ants need warm, humid conditions. Keep the nest at 24-26 °C consistently, avoid temperatures below 22 °C or above 30 °C. Use a heating cable on one side of the nest to create a gentle gradient if your room temperature is lower. Humidity should stay high. The substrate should feel damp to the touch, with occasional condensation on the nest walls. However, avoid standing water, they are from leaf litter, not waterlogged soil. Provide a moisture gradient with damp areas on one side so the ants can choose their preferred spot. Mist the outworld occasionally but avoid direct spraying on the nest ^[2][1].

Colony Development

Very little is known about colony development in this species. The queen has not been described, and founding behavior is unconfirmed. No data on egg-to-worker timing, colony size, or growth rate exists in available literature. If you keep this species, be prepared for a slow and uncertain process. Avoid disturbing the nest during the initial stage and provide stable conditions. Once workers appear (if they do), you can begin offering live prey. Because so much is unknown, this species is recommended only for experienced keepers who can adapt to unexpected outcomes. ^[1]

Frequently Asked Questions

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References