Cataulacus huberi

Cataulacus huberi

Cataulacus huberi is a medium-sized arboreal ant native to the forests of West and Central Africa. Workers measure 5.5-7.8mm with a distinctive appearance featuring long propodeal spines, a strongly marginated gaster, and pronotum that can have 0-4 small teeth or spines on each side ^[1]. The species is remarkably variable in sculpturation, with different populations showing variation in ridge patterns, spine development, and body coloration. These ants are arboreal, typically found running along tree trunks in primary forest habitats, including moss-covered surfaces ^[2]. The genus Cataulacus is known for their unusual habit of nesting in hollow twigs and branches rather than in soil, which influences their care requirements in captivity.

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Primary forests of West and Central Africa, including Ghana, Sierra Leone, Nigeria, Cameroon, Democratic Republic of Congo, Uganda, and Tanzania. They are arboreal ants found on tree trunks and in forest canopy habitats ^[1][2].
• Colony Type: Likely monogyne (single queen) based on typical genus patterns, though colony structure has not been specifically documented for this species.
  • Colony: Monogyne
  • Founding: Claustral
• Size & Growth:
  • Queen: 8.0mm
  • Worker: 5.5-7.8mm ^[1]
  • Colony: Unknown, likely moderate-sized colonies based on genus patterns
  • Growth: Moderate, estimated based on similar Myrmicinae
  • Development: Estimated 6-10 weeks at optimal temperature based on genus-level data (Development time not specifically studied for this species, estimate based on typical Myrmicinae patterns)
• Antkeeping:
  • Temperature: Keep at 24-28°C. These are tropical forest ants requiring warm, stable temperatures. A heating cable on one side of the nest creates a suitable gradient.
  • Humidity: High humidity required, aim for 70-85%. Their natural arboreal habitat in African rainforests is consistently humid. Keep nest substrate moist but not waterlogged, with some drier areas available.
  • Diapause: No, being a tropical species, they do not require hibernation or winter rest. Maintain consistent temperatures year-round.
  • Nesting: In nature they nest in hollow twigs, branches, and under bark in trees. In captivity, they do well in Y-tong (AAC) nests, plaster nests, or naturalistic setups with twigs/branches. Provide narrow chambers and climbing structures.
• Behavior: Arboreal and active climbers. Workers are medium-sized and relatively robust, making escape prevention straightforward with standard barriers. They are not particularly aggressive but will defend their nest. Foraging activity is typically along surfaces rather than on the ground. Their size makes them moderate escape risks, use proper containment but not the finest mesh needed for tiny ants.
• Common Issues: maintaining high humidity without causing mold growth in the nest, providing appropriate arboreal-style nesting materials (twigs, narrow chambers) rather than typical soil nests, temperature drops can stress these tropical ants, avoid cold drafts, wild-caught colonies may carry parasites that affect captive survival

Nest Preferences and Housing

Cataulacus huberi is an arboreal species that naturally nests in hollow twigs, small branches, and under bark in forest trees. In captivity, they do best in nests that mimic these conditions. Y-tong (acrylic) nests with narrow chambers work well, as do plaster nests with appropriate humidity control. Naturalistic setups with pieces of twigs or branches embedded in substrate can also work. The key is providing chambers that are appropriately scaled to their medium size (5.5-7.8mm workers) with good climbing surfaces. Avoid deep soil nests which don't match their natural arboreal nesting preferences. Ensure the nest has some vertical space and climbing structures since they naturally traverse tree trunks. ^[2]

Feeding and Diet

Like most Myrmicinae, Cataulacus huberi is omnivorous with a preference for protein sources. Feed them a varied diet including small insects (fruit flies, pinhead crickets, mealworms) as primary protein. They will also accept sugar sources such as honey water or sugar water, especially when colony size increases. In their natural forest habitat, they likely forage for small arthropods and tend honeydew from aphids or scale insects on trees. Feed protein 2-3 times per week and keep sugar water available at all times for established colonies. Remove uneaten prey after 24-48 hours to prevent mold issues.

Temperature and Humidity Requirements

As a tropical forest species from West and Central Africa, Cataulacus huberi requires warm and humid conditions. Keep temperatures in the range of 24-28°C, avoiding any drops below 22°C. Use a heating cable on one side of the nest to create a temperature gradient, placing it on top of the nest to avoid excessive drying. Humidity should be maintained at 70-85%. This can be achieved by keeping the nest substrate moist and using a water reservoir or misting system. However, balance humidity with adequate ventilation to prevent mold growth. The combination of high humidity and warm temperatures is essential for brood development and colony health.

Behavior and Colony Dynamics

This species is arboreal by nature, meaning they spend most of their time climbing on surfaces rather than walking on the ground. Workers are active foragers and will readily explore their outworld for food. They are not particularly aggressive toward keepers but will defend their nest vigorously if threatened. The colony will likely grow to a moderate size over time, with the queen producing workers continuously. Unlike some Myrmicinae, they do not have specialized castes like major workers, all workers are similar in size within the 5.5-7.8mm range. The queen is significantly larger at 8mm and will remain in the nest chamber once established.

Frequently Asked Questions

References