Camponotus guidae

Camponotus guidae

Camponotus guidae is a medium-sized carpenter ant native to South Australia, described by McArthur in 2007. Workers are dark brown to black with notably lighter, yellowish legs, a distinctive color pattern that helps identify this species. The colony is dimorphic, meaning it has major workers (larger soldiers) and minor workers (foragers), but no intermediate-sized workers have been observed. This ant was named after Guides Australia (the Girl Guides organization) because it was discovered on property they manage called Douglas Scrub. The species is ground-nesting, found in various South Australian locations from McLaren Flat south to Innes National Park. Nothing is directly documented about this species' biology, so care recommendations are based on typical Camponotus patterns and the temperate climate of its range.

Quick Summary

• Difficulty: Medium
• Origin & Habitat: South Australia, found in temperate woodland and scrubland habitats across multiple locations including McLaren Flat, Hatherleigh Hills, Innes National Park, Monarto, and Woakwine Range ^[1][2]. The species is ground-nesting, typical of Australian Camponotus ^[2].
• Colony Type: Presumed monogyne (single queen colony) based on typical Camponotus patterns. Colonies are dimorphic with major and minor workers but no medium workers observed ^[1][2].
  • Colony: Monogyne
  • Founding: Claustral
• Size & Growth:
  • Queen: Estimated 12-15mm based on Camponotus genus patterns, not directly measured for this species
  • Worker: Minor workers approximately 6-8mm, major workers larger at 8-12mm ^[1]
  • Colony: Unknown for this species, likely several hundred workers based on typical Camponotus colony development
  • Growth: Moderate, based on typical Camponotus development patterns
  • Development: Estimated 8-12 weeks at optimal temperature based on typical Camponotus genus development ^[3] (Direct development data unavailable, estimates based on related Australian Camponotus species)
• Antkeeping:
  • Temperature: Keep at room temperature (18-24°C) with a slight warm area (around 25°C) available. South Australian temperate climate suggests they tolerate cooler conditions than tropical species. Provide a temperature gradient so ants can choose their preferred zone.
  • Humidity: Moderate humidity (50-60%). Ground-nesting species from temperate South Australia suggests they prefer well-drained but not dry conditions. Keep nest substrate slightly moist but allow drying between waterings.
  • Diapause: Yes, South Australian temperate climate requires winter hibernation. Reduce temperature to 10-15°C for 2-3 months during winter (May-August in Southern Hemisphere).
  • Nesting: Ground-nesting species, will do well in Y-tong nests, plaster nests, or naturalistic setups with soil. Provide a deep enough nest chamber (at least 10-15mm) for the queen and colony. Avoid overly humid conditions that can cause mold.
• Behavior: Generally calm and non-aggressive for a Camponotus species. Workers are moderate foragers, typically searching for honeydew and small insects. Major workers can deliver a pinch with their mandibles but are not particularly aggressive. Escape prevention should be moderate, these are not tiny ants but standard Camponotus size, so standard barriers work well. They are primarily nocturnal or crepuscular in their foraging patterns, typical of Australian carpenter ants.
• Common Issues: lack of biological data means care is based on genus-level inference, monitor colony behavior and adjust conditions accordingly, winter hibernation is essential for this temperate species, skipping it can weaken or kill the colony, ground-nesting species needs proper substrate depth and moisture balance, too wet causes mold, too dry stresses the colony, slow founding phase is normal, Camponotus queens can take months to produce first workers, don't give up too soon, major workers may appear intimidating but are not aggressive, handle gently during nest transfers

Nest Preferences

Camponotus guidae is a ground-nesting species, which means they naturally excavate nests in soil or use existing cavities in the ground. In captivity, they adapt well to various nest types. Y-tong (acrylic) nests work excellently, choose one with chambers at least 10-15mm deep to accommodate the queen and future brood. Plaster nests are another good option as they allow you to control humidity more precisely. For a naturalistic setup, use a deep container (at least 5cm) filled with a soil-sand mix that holds its shape when tunnels are dug. The nest should be kept in a dark or dimly lit area, as carpenter ants prefer to nest in sheltered, low-light conditions. Provide a water tube or moisture source connected to the nest area so workers can access water without flooding the brood chambers. ^[2][3]

Feeding and Diet

Like other Camponotus species, these ants are omnivorous with a preference for sugar sources and protein. Provide a constant supply of sugar water (1:3 ratio sugar to water) or honey (diluted slightly for easier access). For protein, offer small insects like fruit flies, small crickets, or mealworms, adjust size to match your worker ants. Minor workers can handle small prey, while major workers can tackle larger items. Feed protein 2-3 times per week, removing any uneaten prey after 24 hours to prevent mold. Some keepers report that Australian Camponotus species accept cat food or other prepared protein sources. Always ensure fresh water is available. During hibernation, reduce feeding significantly as metabolic activity slows. ^[3]

Temperature and Seasonal Care

This species comes from temperate South Australia, so it needs distinct seasonal variation. Keep the nest at room temperature (18-24°C) year-round, with a warmer area around 25°C available on one side. During the active season (spring through autumn), this temperature range supports normal colony function and brood development. Come winter (May through August in the Southern Hemisphere), you must simulate hibernation by reducing temperatures to 10-15°C. This can be done by moving the colony to a cooler room, garage, or refrigerator (not freezer). Do not feed during hibernation, but keep a small water source available. Hibernation is critical for this temperate species, skipping it can weaken the colony and shorten the queen's lifespan. Resume normal feeding and temperatures gradually in spring. ^[1][3]

Behavior and Colony Dynamics

Camponotus guidae forms dimorphic colonies with distinct major and minor worker castes. Minor workers handle most foraging, brood care, and nest maintenance, while major workers (soldiers) defend the colony and help process larger food items. The colony grows relatively slowly at first, the claustral queen seals herself in and raises the first brood (nanitic workers) entirely alone. This founding phase can take several months, so patience is essential. Once the first workers emerge, the colony typically grows steadily. Major workers appear as the colony matures, usually when the worker population reaches several dozen. These ants are generally calm and less aggressive than some other carpenter ant species, but they will defend if threatened. Workers are primarily nocturnal, so you may see more activity in the evening hours. ^[1][3]

Frequently Asked Questions

References