Strumigenys bequaerti

Quick Summary

• Difficulty: Expert
• Origin & Habitat: Afrotropical region (Cameroon, Democratic Republic of Congo, Gabon, Guinea, Kenya, Uganda, Rwanda). Inhabits wet forest, rainforest, and evergreen forest at elevations around 2100-2200 m. Nests in humid, strongly shaded soil ^{[1] [2]}.
• Colony Type: Not documented. Colony structure is unknown for this species.
• Size & Growth:
  • Queen: Unknown for this species.
  • Worker: 2.1-2.3 mm total length ^[1]
  • Colony: Unknown
  • Growth: Unknown (estimated slow based on related Strumigenys)
  • Development: Not documented (estimated 8-12 weeks based on related dacetine ants, but unconfirmed) (Development time is not specifically documented for this species.)
• Antkeeping:
  • Temperature: Keep at 20-24 °C. They come from cool montane forests and prefer stable, moderate temperatures. Avoid overheating ^[1].
  • Humidity: High humidity is essential. Keep the nest substrate consistently moist but not waterlogged. These ants live in permanently humid environments ^[1].
  • Diapause: Unknown. Given their montane forest origin at high altitude, they may benefit from a mild cool period in winter, but this is not confirmed.
  • Nesting: Use a naturalistic setup with moist soil or a well-humidified plaster nest. They prefer tight, humid chambers scaled to their tiny size. Test tubes can work if the cotton remains damp but not flooded. Avoid acrylic nests.
• Behavior: These are cryptic, slow-moving ants that spend most of their time in hidden spaces. They are specialized predators, likely hunting springtails and other tiny soil arthropods. Workers forage individually through leaf litter rather than in visible trails. They are not aggressive. Their tiny size means escape prevention must be excellent, they can slip through remarkably small gaps.
• Common Issues: escape prevention is critical due to their very small size, use fine mesh barriers., specialized diet makes feeding challenging, they need live micro-prey., high humidity can lead to mold if ventilation is poor., colonies are slow-growing and small, making them vulnerable to disturbance., wild-caught colonies may have parasites (common in tiny ants), requiring careful quarantine.

Housing and Nest Setup

Recreate the humid, shaded conditions of their forest floor habitat. Use a naturalistic setup with moist forest soil or peat mixed with leaf litter, this allows the ants to forage naturally through the substrate. Alternatively, a well-humidified plaster nest with tight chambers scaled to their tiny size can work. The key is maintaining consistently high humidity without flooding. Use a water reservoir or misting system, but ensure proper drainage to prevent waterlogging. Because they are so small, even minor gaps can lead to escapes, seal all connections thoroughly and use fine mesh on ventilation holes ^[1].

Feeding and Diet

Strumigenys bequaerti is a specialized predator that hunts tiny soil arthropods. In captivity, their primary food should be live springtails, these are ideal-sized prey that matches their natural diet. Other tiny arthropods like potworms (enchytraeids), minute soil mites, and newly hatched pinhead crickets may also be accepted. They are unlikely to accept sugar water or honey, as dacetine ants are not typically sugar-seekers. Feed small amounts of live prey every few days, removing any uneaten prey after 24 hours to prevent mold.

Temperature and Seasonal Care

Keep the nest at 20-24 °C, this matches the cool conditions of their montane forest origin ^{[1] [2]}. They are not heat-tolerant and should be kept away from direct sunlight or heat sources. A slight temperature gradient allows the colony to self-regulate. Given their origin at 2100-2200 m altitude, they may benefit from a mild seasonal cool period in winter, but this is not well-documented. Monitor colony activity to determine if they need a diapause period. Avoid temperature fluctuations and keep the setup away from drafts, air conditioning vents, and heating elements that could cause drying.

Behavior and Observation

These ants are cryptobiotic by nature, they spend most of their time hidden within the substrate or nest, making them challenging to observe regularly. Workers move slowly and deliberately, searching through leaf litter and soil crevices for prey. They do not form visible foraging trails like many ants. Colonies remain small (likely a few dozen to a few hundred individuals). Despite their small size, they have a functional stinger but it is too weak to pose any threat to keepers. Observation is best done with a magnifying glass or by setting up a naturalistic tank where you can watch them through the glass.

Acquiring and Establishing a Colony

This species is rarely available in the antkeeping hobby due to its limited distribution and cryptic nature. If acquiring a colony, it will likely be from a specialized breeder or through careful field collection in its native range. Wild-caught colonies require careful acclimation to captive conditions. Quarantine new colonies and monitor for parasites, tiny ants are particularly vulnerable to mites and other pathogens. Once established, colonies grow slowly, so patience is essential. Do not disturb the colony frequently, especially during the founding stage.

Frequently Asked Questions

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References