Nylanderia integera

Nylanderia integera

Nylanderia integera is a tiny ant species native to southern China, specifically documented in the Guangxi region around Guilin. Workers measure just 2.2mm in total length, making them one of the smaller ant species you'll encounter. They have a distinctive appearance with an orange-yellow body, lighter vertex, and brown gaster. Their most notable feature is their extremely long antennal scapes (SI 202) that extend well beyond the back of the head, giving them an alert, antenna-forward appearance. This species was formally described by Zhou in 2001 and is similar to the more widely known Paratrechina longicornis but can be distinguished by its unbroken anterior clypeal border and shorter antennal scapes^[1].

Because this species has never been kept in captivity and has no documented biological studies, everything we know about its care comes from educated guesses based on related Nylanderia species. These ants are likely fast-moving, active foragers with typical Formicinae colony structures. Their tiny size and documented presence in the Thousand Island Lake region of China suggests they prefer warm, humid conditions similar to other southern Chinese ant species ^[2].

Quick Summary

• Difficulty: Unknown, insufficient captive data
• Origin & Habitat: Southern China (Guangxi region, around Guilin), subtropical forest environment
• Colony Type: Unconfirmed, likely monogyne (single queen) based on genus patterns
• Size & Growth:
  • Queen: Undescribed, estimate 4-5mm based on genus ^[1]
  • Worker: 2.2mm
  • Colony: Unknown, likely several hundred workers based on genus patterns ^[1]
  • Growth: Unknown, likely moderate based on small worker size
  • Development: Unknown, estimate 5-8 weeks based on related Formicinae at optimal temperature (No direct development data exists. Estimate based on genus-level patterns for small tropical/subtropical ants.)
• Antkeeping:
  • Temperature: Aim for 22-26°C, southern Chinese species from subtropical climate. A gentle heat gradient allows workers to self-regulate ^[1].
  • Humidity: Keep substrate moderately moist (60-80%). These ants likely inhabit forest floor microhabitats in their native range. Provide a water tube for drinking access ^[1].
  • Diapause: Likely minimal or none, subtropical species from southern China may reduce activity in cooler months but probably doesn't require true hibernation. More research needed.
  • Nesting: No natural nesting data exists. Based on genus patterns, they likely nest in soil, under stones, or in rotting wood. A test tube setup works for founding, then transition to a Y-tong or plaster nest with small chambers scaled to their tiny 2.2mm size ^[1].
• Behavior: Nothing is documented about this species' behavior in captivity. Based on related Nylanderia species, expect active, fast-moving workers that forage individually. They are likely not aggressive and probably don't sting, their small size makes them harmless to humans. Escape prevention is critical due to their tiny 2.2mm worker size, use fine mesh barriers and tight-fitting lids. They likely accept sugar sources and small protein prey like fruit flies or pinhead crickets, though this is unconfirmed for this specific species ^[1].
• Common Issues: no biological data exists, all care is estimated from genus patterns, tiny 2.2mm size makes escape prevention critical, use fine mesh, no captive breeding records exist to confirm successful husbandry, subtropical origin suggests they may be sensitive to cold, keep above 20°C, nothing known about their diet preferences, start with sugar water and small protein prey

Understanding the Challenge of Keeping Poorly Studied Ants

Nylanderia integera presents a unique challenge in the antkeeping hobby because absolutely no biological research exists on this species in captivity. The original description by Zhou in 2001 covers only physical measurements and comparison to similar species, nothing about their diet, colony structure, founding behavior, or preferred habitat conditions. This means you'll be essentially pioneering their captive care, which requires patience and careful observation. Start with conditions that work for related Nylanderia species and adjust based on how your colony responds. Document your observations carefully, you may discover things about this species that have never been documented before. ^[2][1]

Housing and Nest Setup

For founding colonies, a standard test tube setup works well. Use a small water reservoir (not too large to avoid flooding) and keep the tube in a dark, quiet location. The workers are tiny at just 2.2mm, so any gaps in your setup are potential escape routes. Once the colony reaches 20-30 workers, consider transitioning to a Y-tong (acrylic) nest or a small plaster formicarium. The chambers should be appropriately scaled, these aren't large ants that need room to roam. A small test tube adapter or mini outworld helps with feeding. Maintain moderate humidity inside the nest while providing a water tube for drinking access. The key is creating a setup where you can easily observe them while preventing escapes ^[1].

Temperature and Heating

Since this species comes from southern China (Guangxi region, near Guilin), it likely prefers warm conditions similar to other subtropical ants. Aim for a temperature range of 22-26°C in the nest area. You can achieve this naturally if your room temperature is in this range, or use a heating cable on one side of the nest to create a gentle gradient. Place the heating on top of the nest rather than underneath to avoid drying out the substrate too quickly. Watch colony behavior, if workers seem sluggish, increase temperature slightly, if they avoid the heated area, reduce heat. Unlike temperate species, these ants likely don't need a true diapause period, though they may reduce activity during cooler winter months ^[2][1].

Feeding and Diet

No specific dietary studies exist for Nylanderia integera, but related Nylanderia species are known to be generalist feeders that readily accept sugar sources and protein. Start with a drop of sugar water or honey placed on a small piece of cotton or wax paper in the outworld. For protein, offer tiny prey items like fruit flies, small mealworms, or pinhead crickets. Since these ants are so small (2.2mm workers), the prey needs to be appropriately sized, nothing larger than they can handle. Remove any uneaten food after 24-48 hours to prevent mold. Provide a constant sugar source and offer protein 2-3 times per week. Fresh water should always be available ^[1].

Escape Prevention

With workers measuring just 2.2mm, Nylanderia integera is a serious escape risk regardless of how well-sealed your setup appears. These tiny ants can squeeze through gaps you wouldn't believe possible. Use only fine mesh (at least 0.5mm or smaller) on any ventilation holes. Apply Fluon or a similar barrier to the rim of your formicarium. Check all connection points between the nest and outworld regularly. When feeding, do so in a contained outworld area rather than directly in the nest. Never leave culture jars or feeding dishes unattended without a barrier. Even a small gap in a lid can become an escape route for these determined tiny ants ^[1].

Frequently Asked Questions

References