Dolichoderus laminatus

Quick Summary

• Difficulty: Expert
• Origin & Habitat: Neotropical rainforests from Costa Rica to Brazil, including Colombia, Ecuador, French Guiana, Guyana, Panama, Suriname, and Venezuela. They live arboreally in the forest canopy, nesting under bark of trees like Leuhea and Bombacopsis, or in arboreal termite nests of Nasutitermes ephratae ^[2][3][6].
• Colony Type: Polydomic, colonies can have multiple nests spread across different locations. One documented colony had over 1000 workers plus 168 males and 28 alate females ^[6]. Queens are non-claustral and require host colonies to establish.
• Size & Growth:
  • Queen: ~6-7mm, estimated from worker size and genus patterns
  • Worker: ~6mm ^[1]
  • Colony: 1000+ workers documented in wild colonies ^[6]
  • Growth: Unknown
  • Development: Unknown (Development timeline is unconfirmed for this species. Non-claustral species may have different development patterns than typical claustral ants.)
• Antkeeping:
  • Temperature: Tropical species, keep at 24-28°C. Provide a temperature gradient allowing workers to regulate their exposure.
  • Humidity: High humidity (70-85%), these are rainforest canopy ants. Keep nest substrate consistently moist but not waterlogged.
  • Diapause: No, as a tropical species, they do not require hibernation. Maintain consistent warm conditions year-round.
  • Nesting: Arboreal nesting preferences, they naturally nest under bark, in rotting wood, tree hollows, or arboreal termite nests. In captivity, a naturalistic setup with cork bark, wood pieces, or a Y-tong/plaster nest with access to vertical spaces works well. They prefer having their nest elevated.
• Behavior: Nocturnal and arboreal, workers forage at night in the forest canopy. They are not aggressive and lack the characteristic 'tapinoma' odor that many Dolichoderus species have ^[6]. They are polydomic in the wild, maintaining multiple connected nests.
• Common Issues: non-claustral founding means you cannot start a colony from a single queen alone, you need a host colony or must acquire an established colony, tropical humidity requirements can lead to mold problems if ventilation is inadequate, nocturnal activity means most foraging happens at night, don't assume they're not eating if you only check during the day, polydomic nature may cause stress in single-nest setups, consider providing multiple connected chambers, establishing colonies can be slow due to parasitic founding requirements

Understanding Non-Claustral Founding

This is the most critical aspect of keeping Dolichoderus laminatus. Unlike most ant species where a queen seals herself in a chamber and raises her first workers alone on stored fat, D. laminatus queens are non-claustral. They cannot survive on fat reserves alone and must invade existing colonies of other social insects to establish their colony ^[4][5]. This is a temporary parasitic strategy, the queen uses the host colony's workers to raise her first brood until her own workers emerge. In the wild, they are known to nest in arboreal termite colonies (Nasutitermes ephratae) ^[6]. For antkeepers, this means you cannot start a colony from a single foundress the way you would with Lasius or Camponotus. You will need either an established colony or must provide a suitable host colony.

Housing and Nest Setup

D. laminatus is an arboreal species that naturally nests under bark, in rotting wood, and inside tree hollows. They are commonly found in orchid plants (Cattleya) and prefer nesting in elevated locations near rivers in tropical forests ^[6]. For captivity, create a naturalistic setup with cork bark, pieces of wood, or a Y-tong/plaster nest with vertical orientation. These ants do best with multiple connected chambers, reflecting their polydomic nature in the wild. The outworld should include climbing structures and branches since they forage in the canopy. Keep humidity high (70-85%) and ensure the nest area stays consistently moist but never waterlogged.

Feeding and Diet

While specific dietary studies are lacking for D. laminatus, Dolichoderus species are generally omnivorous. They likely feed on honeydew from aphids and scale insects, extrafloral nectaries, and small insects. In captivity, offer sugar water or honey regularly, along with small insects like fruit flies, small crickets, or mealworms. As nocturnal foragers, place food in the evening and check the next morning. Their arboreal lifestyle suggests they may prefer liquid sugar sources they can access from leaves and bark surfaces. Feed protein prey 2-3 times per week and keep sugar water available constantly.

Temperature and Humidity

As a Neotropical species from Costa Rica to Brazil, D. laminatus requires warm, humid conditions. Keep temperatures in the range of 24-28°C with a slight gradient so workers can choose their preferred zone. Room temperature may be too cold, consider using a heating cable on one side of the nest. High humidity is essential, aim for 70-85% relative humidity. Use a water reservoir in your setup and mist regularly, but ensure good ventilation to prevent mold. These ants live in rainforest canopies, so they are accustomed to stable, warm, and humid conditions year-round. Do not allow temperatures to drop below 22°C for extended periods. ^[6]

Colony Behavior and Dynamics

D. laminatus colonies can be quite large, with documented wild colonies exceeding 1000 workers ^[6]. They are polydomic, meaning they maintain multiple nests in different locations, this is unusual among ants and reflects their arboreal lifestyle moving between tree hollows and bark spaces. Workers are nocturnal, foraging through the canopy at night. Unlike many Dolichoderus species, they lack the characteristic 'tapinoma' odor (an unpleasant smell many ants in this genus produce when threatened) and are described as non-aggressive ^[6]. This makes them easier to handle than some related species. However, their complex colony structure and parasitic founding requirements make them a species for experienced antkeepers.

Frequently Asked Questions

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References