Procryptocerus goeldii - "Goeld's Gliding Ant"
Procryptocerus goeldii is a fascinating Neotropical ant species known for its unique ability to 'parachute' by steering its fall if it drops from a tree. These ants typically have a mostly black coloration with varied body sculpture. Workers are monomorphic, meaning they are all roughly the same size and shape, without distinct major or minor castes. They are closely related to Procryptocerus hylaeus but can be distinguished by the smooth and shiny anterodorsal face of their petiole, as opposed to the transversely striate petiole of P. hylaeus. They also exhibit distinct vertex sculpture and pilosity (hairiness).
- Difficulty: Hard
- Origin & Habitat: Neotropical Region, including Argentina, Brazil, French Guiana, Mexico, and Paraguay. in Rainforests, often in hollow twigs or branches found on the forest floor. They are arboreal nesters and can be found foraging in low vegetation..
- Colony Type: Oligogyne (multiple queens but isolated, no brood mixing), claustral founding.
- Size & Growth:
- Queen: 3.7-9.5mm
- Worker: 3.5-8.5mm
- Colony: Medium (thousands), though some reports indicate smaller colonies in the hundreds.. Medium growth.
- Antkeeping:
- Temperature: Ideally, maintain temperatures between 24-28°C for optimal growth, mimicking their natural tropical environment. Avoid sudden temperature drops..
- Humidity: A high humidity of 70-85% is crucial, as they naturally inhabit humid rainforests. This can be achieved with regular misting or a humidity-retaining nest setup..
- Diapause: Not required. Not specified at Not specified.
- Nesting: As arboreal species, they prefer nesting in hollow twigs or branches. For captivity, naturalistic setups with cork bark, bamboo, or specialized acrylic nests designed for arboreal species are best. They are also known to integrate epiphyte seeds into their nests, which germinate and reinforce the structure..
- Behavior: Low (towards handler, food or other ants) aggressiveness.
- Common Issues: Mold in nest, Humidity fluctuations, Stress from inadequate arboreal setup, Difficulty in initial founding.
One of the most remarkable traits of Procryptocerus goeldii is their unique 'gliding' or 'parachuting' behavior. If a worker happens to fall from a tree, it can actively steer its descent to land safely back on the tree trunk. This incredible adaptation helps them survive in their arboreal habitat, making them a truly unique and engaging species to observe in a formicarium. While this behavior is hard to replicate in captivity, it underscores their need for vertical climbing opportunities and a secure setup.
These ants are known to be omnivores in their natural habitat, foraging for both animal prey and extrafloral nectar. In a captive setup, this translates to a varied diet, offering a mix of protein sources like small insects (roaches, crickets) and sugary foods such as diluted honey or sugar water. Providing a diverse diet helps ensure the colony receives all necessary nutrients for healthy growth and development.
Given their natural preference for nesting within hollow twigs and branches, selecting the right formicarium is vital for P. goeldii. A vertical setup with cork bark inserts, hollow bamboo pieces, or specialized arboreal acrylic nests would be ideal. Ensure that the nest chambers and tunnels mimic the tight spaces they would inhabit in the wild to make them feel secure and encourage colony establishment. Proper ventilation is also key to prevent mold, which can be an issue in high-humidity environments.
While Procryptocerus goeldii are generally considered oligogynous, meaning they can have multiple queens in a colony, these queens typically remain isolated and do not mix their brood. This is an interesting social structure that distinguishes them from truly polygyne species. If you manage to catch a nuptial flight and find multiple queens, it's worth noting that they may co-exist, but their individual brood piles might be kept separate within the nest system. This unique aspect of their social organization adds another layer of intrigue for the dedicated ant keeper.
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