Camponotus termitarius

Camponotus termitarius

Camponotus termitarius is a medium-sized Camponotus species native to the Neotropical region of South America, found in Argentina, Brazil, and Paraguay. Workers are polymorphic, meaning they come in different sizes, majors are larger with well-developed heads, while minors are smaller and more slender. The common name 'Termite Ant' comes from their unique habit of nesting in old termite mounds, which is unusual among carpenter ants. This species was elevated to full species status in 2007,previously being classified as a subspecies of C. punctulatus ^[1]. They are ground-nesting ants that prefer low-lying pastures and grassland areas.

Quick Summary

• Difficulty: Medium
• Origin & Habitat: Native to the Neotropical region, Argentina, Brazil, and Paraguay. Found in low-lying pastures, grasslands (pastizales), and notably in old termite mounds. This species has a strong association with termite nest structures, using abandoned termite mounds as nesting sites ^[1]. The Chaco region of Paraguay represents part of their range where they make up about 3.6% of ant activity at baits ^[2].
• Colony Type: Likely monogyne (single queen colonies) based on typical Camponotus patterns. Colony size is not well documented but likely reaches several thousand workers given the genus typical size.
  • Colony: Monogyne
  • Founding: Claustral
• Size & Growth:
  • Queen: Estimated 12-15mm based on Camponotus genus patterns, direct measurements not available
  • Worker: Polymorphic: minors 5-7mm, majors 8-12mm, typical for Camponotus
  • Colony: Estimated several thousand workers based on genus typical size
  • Growth: Moderate, typical Camponotus development
  • Development: Estimated 6-8 weeks at optimal temperature based on typical Camponotus development (Development time is typical for Camponotus in warm conditions. First workers (nanitics) are smaller than normal workers.)
• Antkeeping:
  • Temperature: Keep at 24-28°C. As a Neotropical species, they prefer warm conditions. A heating cable on one side of the nest creates a temperature gradient they can regulate by moving.
  • Humidity: Moderate humidity around 50-70%. They nest in termite mounds which can have variable moisture. Keep the nest substrate slightly moist but allow some drying areas. Avoid both waterlogging and complete drying.
  • Diapause: Not required. Being a Neotropical species from subtropical regions, they do not have a strong diapause requirement. However, a slight reduction in temperature during winter months (around 18-20°C) may be beneficial to simulate seasonal slowdown.
  • Nesting: Y-tong (AAC) nests or plaster nests work well. Their natural nesting in termite mounds suggests they can handle drier nest conditions than many ants. Provide a nest with chambers scaled to their size, not too tight, not too spacious. A test tube setup works for founding colonies.
• Behavior: Workers are moderately active and forage individually. They are not particularly aggressive but will defend the nest if threatened. As typical for Camponotus, they are generalist foragers that collect honeydew and hunt small insects. Escape risk is moderate, they are not tiny ants but can climb smooth surfaces. Use standard barrier methods. Majors can deliver a mild sting if handled roughly, though Camponotus stings are generally not dangerous to humans.
• Common Issues: colonies may grow slowly initially, patience is needed during the claustral founding phase, test tube flooding can drown founding queens, use appropriate water reservoir size, wild-caught colonies may carry parasites, quarantine and observe new colonies, overheating is a risk, keep nest away from direct sunlight and heat sources, escape prevention is important, use fluon or other barriers, especially for minor workers

Housing and Nest Setup

For founding colonies, a standard test tube setup works well. Fill the tube about one-third with water and plug the end with cotton, the ants will drink from the water reservoir through the cotton. Cover the tube with a dark cloth to simulate the dark interior of a termite nest. Once the colony reaches 15-20 workers, you can move them to a proper formicarium. Y-tong (AAC) nests are excellent for this species as they allow you to observe the colony while maintaining appropriate humidity. Plaster nests also work well. The colony will need an outworld area for foraging, a simple plastic container connected to the nest works. Ensure all connections are secure as these ants can squeeze through small gaps. ^[1]

Feeding and Diet

Camponotus termitarius is a generalist feeder like most carpenter ants. Provide a constant source of sugar, sugar water, honey, or commercial ant nectar. For protein, offer small insects like fruit flies, small crickets, or mealworms. They will also collect honeydew if you haveaphids on plants. Feed protein 2-3 times per week, and ensure sugar is always available. Remove uneaten prey after 24 hours to prevent mold. Fresh killed insects are more readily accepted than live prey for most colonies. A varied diet helps ensure healthy brood development.

Temperature and Seasonal Care

As a Neotropical species from Argentina, Brazil, and Paraguay, Camponotus termitarius prefers warm conditions. Keep the nest area at 24-28°C for optimal brood development. A heating cable placed on top of the nest (never underneath to avoid drying) can provide gentle warmth. During winter, a slight reduction to around 18-20°C is acceptable, but avoid cold temperatures below 15°C. They do not require true hibernation but may show reduced activity in cooler months. Maintain stable temperatures, avoid drafts and sudden changes. Room temperature within the 24-28°C range is often suitable without additional heating. ^[1][2]

Colony Development and Growth

A newly mated queen will seal herself in a claustral chamber and lay eggs without leaving to forage. She survives on her stored fat reserves while raising the first brood. This founding phase typically takes 4-8 weeks depending on temperature. The first workers (nanitics) are smaller than normal workers but will immediately begin foraging for food to feed the developing brood. Colony growth is initially slow but accelerates once the first workers emerge. A mature colony may contain several thousand workers over several years. Major workers (soldiers) typically appear once the colony reaches several hundred workers. Be patient, Camponotus colonies can take several years to reach full size.

Behavior and Observation

Workers are moderately active and will establish foraging trails. They are not aggressive toward humans but will defend the nest if disturbed. The polymorphic worker castes are interesting to observe, majors often guard the nest or help process large food items, while minors handle most foraging. They are primarily ground-dwelling and do not climb well on smooth surfaces, making standard barrier methods effective. Observation is easiest in the evening when they are most active. The species name 'termitarius' refers to their unique association with termite mounds, in captivity, they do fine in standard nests without actual termite material. ^[1]

Frequently Asked Questions

References