Dolichoderus maschwitzi

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Tropical rainforest of Sabah, northeastern Borneo. Found in leaf litter on the forest floor, where they build bivouac nests ^[1][2].
• Colony Type: Ergatoid queen system, queens are wingless and develop within the colony. Colony structure is not well documented.
• Size & Growth:
  • Queen: size data unavailable, queen measurements in research are head measurements only (HL 1.47-1.49 mm), not total length ^[1]
  • Worker: 4.83-6.04 mm total length ^[1]
  • Colony: Unknown for this species, no specific colony size data available
  • Growth: Unknown
  • Development: Unknown, no specific development studies exist for this species (Development time is unconfirmed. Tropical ant species typically develop faster than temperate ones.)
• Antkeeping:
  • Temperature: Keep warm at 24-28°C, these are tropical rainforest ants that need consistent warmth. Avoid temperatures below 22°C.
  • Humidity: High humidity, they naturally live in damp leaf litter. Keep the nest substrate consistently moist but not waterlogged.
  • Diapause: No, as a tropical species from Borneo, they do not require hibernation. Maintain consistent temperatures year-round ^[1].
  • Nesting: They prefer ground-level nests in leaf litter or soil. In captivity, a naturalistic setup with moist substrate or a Y-tong/plaster nest works well. They are not arboreal, avoid tall nests. Keep nesting area dark and humid ^[1].
• Behavior: These are docile, non-aggressive ants that spend much of their time tending mealybugs for honeydew. Workers are active both day and night at trophobiosis sites. They do not have a functional sting and pose no danger to keepers. Escape risk is moderate, their medium size means standard formicarium barriers work well.
• Common Issues: maintaining humidity can be tricky, too dry and colonies struggle, too wet causes mold, specialized diet may be challenging, they prefer honeydew/sugar over solid protein, tropical species are sensitive to temperature drops below 22°C, ergatoid queens may be harder to establish than fully claustral species, wild-caught colonies may arrive with their mealybug partners and require specific care, colony size and growth rate are not well documented for this species

Housing and Nest Setup

Dolichoderus maschwitzi is a ground-nesting species that naturally lives in leaf litter on the rainforest floor. For captivity, a naturalistic setup with moist soil or coco fiber substrate works best, aim for a substrate depth of at least 3-4 cm to allow them to create chambers. Alternatively, a Y-tong or plaster nest with narrow chambers provides good visibility while maintaining humidity. Place the nest in a dark area of your setup, as these ants prefer dim conditions. The outworld should have a water tube and be escape-proof with standard barrier methods. ^[1]

Feeding and Diet

As herdsmen ants, D. maschwitzi has a strong preference for sugar sources. They naturally feed on honeydew secreted by their mealybug partners, so offering sugar water or diluted honey is ideal. Change sugar liquids every 2-3 days to prevent fermentation. For protein, they will accept small insects like fruit flies or small mealworm pieces, but these are secondary to their sugar needs. Unlike predatory ants, they are not active hunters, workers will collect sugar liquids readily but may ignore solid protein initially. Feed sugar constantly and protein 1-2 times per week. ^[1]

Temperature and Humidity

These tropical ants require warm, humid conditions. Keep the nest area at 24-28°C consistently, temperatures below 22°C can stress colonies and slow development. A small heating cable placed on one side of the nest creates a gentle gradient that workers can regulate by moving. Humidity should be high, mimicking the damp rainforest floor. The substrate should feel consistently moist but never waterlogged. Condensation on the nest walls is a good indicator of adequate humidity. Avoid placing the setup near air conditioning or drafty areas. Since they do not undergo diapause, maintain these conditions year-round without seasonal temperature drops. ^[1]

Colony Structure and Ergatoid Queens

One of the most interesting aspects of D. maschwitzi is its ergatoid queen system. Unlike most ant species where queens are winged and fly out to mate, ergatoid queens are born wingless and mate with males inside the nest. The queens are relatively small, the research provides head measurements of 1.47-1.49 mm, but total body length is not documented. This means founding colonies may not look dramatically different from established ones, the queen is not dramatically larger than workers and lacks wings. Colony establishment may be slower than species with larger claustral queens. ^[1]

Behavior and Activity

Dolichoderus maschwitzi is a docile, non-aggressive species that rarely shows defensive behavior. Workers are moderately active and can be observed both during the day and at night, which is typical for herdsmen ants that tend their mealybug partners around the clock. They do not possess a functional sting and pose no threat to keepers. In the wild, they spend significant time tending mealybugs and collecting honeydew, in captivity, this translates to a preference for sugar liquids over other food sources. ^[1]

Frequently Asked Questions

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References